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32,142 results on '"Enrico E"'

2. Outcomes in patients with atypical hemolytic uremic syndrome treated with eculizumab in a long-term observational study

Author

Jan Menne, Yahsou Delmas, Fadi Fakhouri, Christoph Licht, Åsa Lommelé, Enrico E. Minetti, François Provôt, Eric Rondeau, Neil S. Sheerin, Jimmy Wang, Laurent E. Weekers, and Larry A. Greenbaum

Subjects
Atypical hemolytic uremic syndrome, Alternate complement pathway, Eculizumab, Thrombotic microangiopathy, Diseases of the genitourinary system. Urology, RC870-923
Abstract

Abstract Background There are limited long-term outcome data in eculizumab-treated patients with atypical hemolytic uremic syndrome (aHUS). We report final results from the largest prospective, observational, multicenter study of patients with aHUS treated with eculizumab. Methods Patients with aHUS who participated in any of five parent eculizumab trials and received at least one eculizumab infusion were eligible for enrollment in a long-term follow-up study. Rates of thrombotic microangiopathy (TMA) manifestations off versus on eculizumab were evaluated. Additional endpoints included change from baseline estimated glomerular filtration rate (eGFR), long-term renal outcomes, and serious targeted treatment-emergent adverse events. Results Among 93 patients (0–80 years of age), 51 (55%) remained on eculizumab and 42 (45%) discontinued; for those who discontinued, 21 (50%) reinitiated therapy. Patients who reinitiated eculizumab had similar baseline clinical characteristics to patients who remained on eculizumab, with higher likelihood of genetic/autoimmune complement abnormalities, more prior TMAs, and longer disease course versus those who did not reinitiate. Mean eGFR improved rapidly and remained stable for up to 6 years on eculizumab. In patients who discontinued, there was a trend toward decreasing renal function over time from discontinuation. Additionally, off-treatment TMA manifestation rates were higher in those aged

Published
2019
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3. Broadband Parametric Amplification in DARTWARS

Author

Faverzani, M., Campana, P., Carobene, R., Gobbo, M., Ahrens, F., Avallone, G., Barone, C., Borghesi, M., Capelli, S., Carapella, G., Caricato, A. P., Callegaro, L., Carusotto, I., Celotto, A., Cian, A., D’Elia, A., Di Gioacchino, D., Enrico, E., Falferi, P., Fasolo, L., Ferri, E., Filatrella, G., Gatti, C., Giubertoni, D., Granata, V., Guarcello, C., Irace, A., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mezzena, R., Monteduro, A. G., Moretti, R., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Piedjou Komnang, A. S., Piersanti, L., Rettaroli, A., Rizzato, S., Tocci, S., Vinante, A., Zannoni, M., and Giachero, A.

Published
2024
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4. Progress in the development of a KITWPA for the DARTWARS project

Author

Borghesi, M., Barone, C., Capelli, S., Carapella, G., Caricato, A. P., Carusotto, I., Cian, A., Di Gioacchino, D., Enrico, E., Falferi, P., Fasolo, L., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giachero, A., Giubertoni, D., Granata, V., Greco, A., Guarcello, C., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mauro, C., Mezzena, R., Monteduro, A. G., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Pierro, V., Piersanti, L., Rajteri, M., Rettaroli, A., Rizzato, S., Vinante, A., and Zannoni, M.

Subjects
Quantum Physics, Condensed Matter - Superconductivity
Abstract

DARTWARS (Detector Array Readout with Traveling Wave AmplifieRS) is a three years project that aims to develop high-performing innovative Traveling Wave Parametric Amplifiers (TWPAs) for low temperature detectors and qubit readout (C-band). The practical development follows two different promising approaches, one based on the Josephson junctions (TWJPA) and the other one based on the kinetic inductance of a high-resistivity superconductor (KITWPA). This paper presents the advancements made by the DARTWARS collaboration to produce a first working prototype of a KITWPA., Comment: 3 pages, 4 figures. Proceeding of Pisa15th Meeting conference

Published
2022
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5. Ultra low noise readout with travelling wave parametric amplifiers: the DARTWARS project

Author

Rettaroli, A., Barone, C., Borghesi, M., Capelli, S., Carapella, G., Caricato, A. P., Carusotto, I., Cian, A., Di Gioacchino, D., Enrico, E., Falferi, P., Fasolo, L., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giachero, A., Giubertoni, D., Granata, V., Greco, A., Guarcello, C., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mauro, C., Mezzena, R., Monteduro, A. G., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Pierro, V., Piersanti, L., Rajteri, M., Rizzato, S., Vinante, A., and Zannoni, M.

Subjects
Quantum Physics
Abstract

The DARTWARS project has the goal of developing high-performing innovative travelling wave parametric amplifiers with high gain, large bandwidth, high saturation power, and nearly quantum-limited noise. The target frequency region for its applications is 5 - 10 GHz, with an expected noise temperature of about 600 mK. The development follows two different approaches, one based on Josephson junctions and one based on kinetic inductance of superconductors. This contribution mainly focuses on the Josephson travelling wave parametric amplifier, presenting its design, preliminary measurements and the test of homogeneity of arrays of Josephson junctions., Comment: 4 pages, 5 figures. Proceeding of Pisa15th Meeting conference. arXiv admin note: text overlap with arXiv:2111.03409

Published
2022
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6. Detector Array Readout with Traveling Wave Amplifiers

Author

Giachero, A., Barone, C., Borghesi, M., Carapella, G., Caricato, A. P., Carusotto, I., Chang, W., Cian, A., Di Gioacchino, D., Enrico, E., Falferi, P., Fasolo, L., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giubertoni, D., Greco, A., Kutlu, C., Leo, A., Ligi, C., Maccarrone, G., Margesin, B., Maruccio, G., Matlashov, A., Mauro, C., Mezzena, R., Monteduro, A. G., Nucciotti, A., Oberto, L., Pagano, S., Pierro, V., Piersanti, L., Rajteri, M., Rizzato, S., Semertzidis, Y. K., Uchaikin, S., and Vinante, A.

Subjects
Condensed Matter - Superconductivity, Quantum Physics
Abstract

Noise at the quantum limit over a large bandwidth is a fundamental requirement for future applications operating at millikelvin temperatures, such as the neutrino mass measurement, the next-generation x-ray observatory, the CMB measurement, the dark matter and axion detection, and the rapid high-fidelity readout of superconducting qubits. The read out sensitivity of arrays of microcalorimeter detectors, resonant axion-detectors, and qubits, is currently limited by the noise temperature and bandwidth of the cryogenic amplifiers. The DARTWARS (Detector Array Readout with Traveling Wave AmplifieRS) project has the goal of developing high-performing innovative traveling wave parametric amplifiers (TWPAs) with a high gain, a high saturation power, and a quantum-limited or nearly quantum-limited noise. The practical development follows two different promising approaches, one based on the Josephson junctions and the other one based on the kinetic inductance of a high-resistivity superconductor. In this contribution we present the aims of the project, the adopted design solutions and preliminary results from simulations and measurements.

Published
2021
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7. Bimodal Approach for Noise Figures of Merit Evaluation in Quantum-Limited Josephson Traveling Wave Parametric Amplifiers

Author

Fasolo, L., Barone, C., Borghesi, M., Carapella, G., Caricato, A. P., Carusotto, I., Chung, W., Cian, A., Di Gioacchino, D., Enrico, E., Falferi, P., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giachero, A., Giubertoni, D., Greco, A., Kutlu, C., Leo, A., Ligi, C., Livreri, P., Maccarrone, G., Margesin, B., Maruccio, G., Matlashov, A., Mauro, C., Mezzena, R., Monteduro, A. G., Nucciotti, A., Oberto, L., Pagano, S., Pierro, V., Piersanti, L., Rajteri, M., Rettaroli, A., Rizzato, S., Semertzidis, Y. K., Uchaikin, U., and Vinante, A.

Subjects
Condensed Matter - Superconductivity
Abstract

The advent of ultra-low noise microwave amplifiers revolutionized several research fields demanding quantum-limited technologies. Exploiting a theoretical bimodal description of a linear phase-preserving amplifier, in this contribution we analyze some of the intrinsic properties of a model architecture (i.e., an rf-SQUID based Josephson Traveling Wave Parametric Amplifier) in terms of amplification and noise generation for key case study input states (Fock and coherents). Furthermore, we present an analysis of the output signals generated by the parametric amplification mechanism when thermal noise fluctuations feed the device., Comment: 5 pages, 6 figures

Published
2021
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8. Detector Array Readout with Traveling Wave Amplifiers

Author

Giachero, A., Barone, C., Borghesi, M., Carapella, G., Caricato, A. P., Carusotto, I., Chang, W., Cian, A., Gioacchino, D. Di, Enrico, E., Falferi, P., Fasolo, L., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giubertoni, D., Greco, A., Kutlu, C., Leo, A., Ligi, C., Maccarrone, G., Margesin, B., Maruccio, G., Matlashov, A., Mauro, C., Mezzena, R., Monteduro, A. G., Nucciotti, A., Oberto, L., Pagano, S., Pierro, V., Piersanti, L., Rajteri, M., Rizzato, S., Semertzidis, Y. K., Uchaikin, S., and Vinante, A.

Published
2022
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9. Progress in the development of a KITWPA for the DARTWARS project

Author

Borghesi, M., Barone, C., Capelli, S., Carapella, G., Caricato, A.P., Carusotto, I., Cian, A., Di Gioacchino, D., Enrico, E., Falferi, P., Fasolo, L., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giachero, A., Giubertoni, D., Granata, V., Greco, A., Guarcello, C., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mauro, C., Mezzena, R., Monteduro, A.G., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Pierro, V., Piersanti, L., Rajteri, M., Rettaroli, A., Rizzato, S., Vinante, A., and Zannoni, M.

Published
2023
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10. Ultra low noise readout with traveling wave parametric amplifiers: The DARTWARS project

Author

Rettaroli, A., Barone, C., Borghesi, M., Capelli, S., Carapella, G., Caricato, A.P., Carusotto, I., Cian, A., Di Gioacchino, D., Enrico, E., Falferi, P., Fasolo, L., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giachero, A., Giubertoni, D., Granata, V., Greco, A., Guarcello, C., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mauro, C., Mezzena, R., Monteduro, A.G., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Pierro, V., Piersanti, L., Rajteri, M., Rizzato, S., Vinante, A., and Zannoni, M.

Published
2023
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11. Development of KI-TWPAs for the DARTWARS project

Author

Ahrens, F, Ferri, E, Avallone, G, Barone, C, Borghesi, M, Callegaro, L, Carapella, G, Caricato, A, Carusotto, I, Cian, A, D'Elia, A, Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Granata, V, Guarcello, C, Labranca, D, Leo, A, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mezzena, R, Monteduro, A, Moretti, R, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Piedjou, A, Piersanti, L, Rettaroli, A, Rizzato, S, Tocci, S, Vinante, A, Zannoni, M, Ahrens F., Ferri E., Avallone G., Barone C., Borghesi M., Callegaro L., Carapella G., Caricato A. P., Carusotto I., Cian A., D'Elia A., Gioacchino D. D., Enrico E., Falferi P., Fasolo L., Faverzani M., Filatrella G., Gatti C., Giachero A., Giubertoni D., Granata V., Guarcello C., Labranca D., Leo A., Ligi C., Maccarrone G., Mantegazzini F., Margesin B., Maruccio G., Mezzena R., Monteduro A. G., Moretti R., Nucciotti A., Oberto L., Origo L., Pagano S., Piedjou A. S., Piersanti L., Rettaroli A., Rizzato S., Tocci S., Vinante A., Zannoni M., Ahrens, F, Ferri, E, Avallone, G, Barone, C, Borghesi, M, Callegaro, L, Carapella, G, Caricato, A, Carusotto, I, Cian, A, D'Elia, A, Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Granata, V, Guarcello, C, Labranca, D, Leo, A, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mezzena, R, Monteduro, A, Moretti, R, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Piedjou, A, Piersanti, L, Rettaroli, A, Rizzato, S, Tocci, S, Vinante, A, Zannoni, M, Ahrens F., Ferri E., Avallone G., Barone C., Borghesi M., Callegaro L., Carapella G., Caricato A. P., Carusotto I., Cian A., D'Elia A., Gioacchino D. D., Enrico E., Falferi P., Fasolo L., Faverzani M., Filatrella G., Gatti C., Giachero A., Giubertoni D., Granata V., Guarcello C., Labranca D., Leo A., Ligi C., Maccarrone G., Mantegazzini F., Margesin B., Maruccio G., Mezzena R., Monteduro A. G., Moretti R., Nucciotti A., Oberto L., Origo L., Pagano S., Piedjou A. S., Piersanti L., Rettaroli A., Rizzato S., Tocci S., Vinante A., and Zannoni M.

Abstract

Noise at the quantum limit over a broad bandwidth is a fundamental requirement for future cryogenic experiments for neutrino mass measurements, dark matter searches and Cosmic Microwave Background (CMB) measurements as well as for fast high-fidelity read-out of superconducting qubits. In the last years, Josephson Parametric Amplifiers (JPA) have demonstrated noise levels close to the quantum limit, but due to their narrow bandwidth, only few detectors or qubits per line can be read out in parallel. An alternative and innovative solution is based on superconducting parametric amplification exploiting the travelling-wave concept. Within the DARTWARS (Detector Array Readout with Travelling Wave AmplifieRS) project, we develop Kinetic Inductance Travelling-Wave Parametric Amplifiers (KI-TWPAs) for low temperature detectors and qubit read-out. KI-TWPAs are typically operated in a threewave mixing (3WM) mode and are characterised by a high gain, a high saturation power, a large amplification bandwidth and nearly quantum limited noise performance. The goal of the DARTWARS project is to optimise the KI-TWPA design, explore new materials, and investigate alternative fabrication processes in order to enhance the overall performance of the amplifier. In this contribution we present the advancements made by the DARTWARS collaboration to produce a working prototype of a KI-TWPA, from the fabrication to the characterisation.

Published
2024

12. Experimental Characterization of RF-SQUIDs Based Josephson Traveling Wave Parametric Amplifier Exploiting Resonant Phase Matching Scheme

Author

Fasolo, L, Ahrens, F, Avallone, G, Barone, C, Borghesi, M, Callegaro, L, Carapella, G, Caricato, A, Carusotto, I, Cian, A, D'Elia, A, Gioacchino, D, Falferi, P, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giubertoni, D, Granata, V, Guarcello, C, Labranca, D, Leo, A, Ligi, C, Livreri, P, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mezzena, R, Monteduro, A, Moretti, R, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Piedjou, A, Piersanti, L, Rettaroli, A, Rizzato, S, Tocci, S, Vinante, A, Zannoni, M, Giachero, A, Enrico, E, Fasolo, L., Ahrens, F., Avallone, G., Barone, C., Borghesi, M., Callegaro, L., Carapella, G., Caricato, A. P., Carusotto, I., Cian, A., D'Elia, A., Gioacchino, D. Di, Falferi, P., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giubertoni, D., Granata, V., Guarcello, C., Labranca, D., Leo, A., Ligi, C., Livreri, P., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mezzena, R., Monteduro, A. G., Moretti, R., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Piedjou, A. S., Piersanti, L., Rettaroli, A., Rizzato, S., Tocci, S., Vinante, A., Zannoni, M., Giachero, A., Enrico, E., Fasolo, L, Ahrens, F, Avallone, G, Barone, C, Borghesi, M, Callegaro, L, Carapella, G, Caricato, A, Carusotto, I, Cian, A, D'Elia, A, Gioacchino, D, Falferi, P, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giubertoni, D, Granata, V, Guarcello, C, Labranca, D, Leo, A, Ligi, C, Livreri, P, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mezzena, R, Monteduro, A, Moretti, R, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Piedjou, A, Piersanti, L, Rettaroli, A, Rizzato, S, Tocci, S, Vinante, A, Zannoni, M, Giachero, A, Enrico, E, Fasolo, L., Ahrens, F., Avallone, G., Barone, C., Borghesi, M., Callegaro, L., Carapella, G., Caricato, A. P., Carusotto, I., Cian, A., D'Elia, A., Gioacchino, D. Di, Falferi, P., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giubertoni, D., Granata, V., Guarcello, C., Labranca, D., Leo, A., Ligi, C., Livreri, P., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mezzena, R., Monteduro, A. G., Moretti, R., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Piedjou, A. S., Piersanti, L., Rettaroli, A., Rizzato, S., Tocci, S., Vinante, A., Zannoni, M., Giachero, A., and Enrico, E.

Abstract

This study presents recent advancements in Josephson Traveling Wave Parametric Amplifiers (JTWPAs) developed and tested at INRiM within the DARTWARS project framework. Combining Josephson junctions with superconducting coplanar waveguides, JTWPAs offer advanced capabilities for quantum-limited broadband microwave amplification and the emission of non-classical microwave radiation. The work delves into the architecture, optimization, and experimental characterization of a JTWPA with a Resonant Phase-Matching mechanism, highlighting signal gains and idler conversion factors in relation to pump power and signal frequency.

Published
2024

13. Broadband Parametric Amplification in DARTWARS

Author

Faverzani, M, Campana, P, Carobene, R, Gobbo, M, Ahrens, F, Avallone, G, Barone, C, Borghesi, M, Capelli, S, Carapella, G, Caricato, A, Callegaro, L, Carusotto, I, Celotto, A, Cian, A, D’Elia, A, Di Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Ferri, E, Filatrella, G, Gatti, C, Giubertoni, D, Granata, V, Guarcello, C, Irace, A, Labranca, D, Leo, A, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mezzena, R, Monteduro, A, Moretti, R, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Piedjou Komnang, A, Piersanti, L, Rettaroli, A, Rizzato, S, Tocci, S, Vinante, A, Zannoni, M, Giachero, A, Faverzani, M., Campana, P., Carobene, R., Gobbo, M., Ahrens, F., Avallone, G., Barone, C., Borghesi, M., Capelli, S., Carapella, G., Caricato, A. P., Callegaro, L., Carusotto, I., Celotto, A., Cian, A., D’Elia, A., Di Gioacchino, D., Enrico, E., Falferi, P., Fasolo, L., Ferri, E., Filatrella, G., Gatti, C., Giubertoni, D., Granata, V., Guarcello, C., Irace, A., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mezzena, R., Monteduro, A. G., Moretti, R., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Piedjou Komnang, A. S., Piersanti, L., Rettaroli, A., Rizzato, S., Tocci, S., Vinante, A., Zannoni, M., Giachero, A., Faverzani, M, Campana, P, Carobene, R, Gobbo, M, Ahrens, F, Avallone, G, Barone, C, Borghesi, M, Capelli, S, Carapella, G, Caricato, A, Callegaro, L, Carusotto, I, Celotto, A, Cian, A, D’Elia, A, Di Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Ferri, E, Filatrella, G, Gatti, C, Giubertoni, D, Granata, V, Guarcello, C, Irace, A, Labranca, D, Leo, A, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mezzena, R, Monteduro, A, Moretti, R, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Piedjou Komnang, A, Piersanti, L, Rettaroli, A, Rizzato, S, Tocci, S, Vinante, A, Zannoni, M, Giachero, A, Faverzani, M., Campana, P., Carobene, R., Gobbo, M., Ahrens, F., Avallone, G., Barone, C., Borghesi, M., Capelli, S., Carapella, G., Caricato, A. P., Callegaro, L., Carusotto, I., Celotto, A., Cian, A., D’Elia, A., Di Gioacchino, D., Enrico, E., Falferi, P., Fasolo, L., Ferri, E., Filatrella, G., Gatti, C., Giubertoni, D., Granata, V., Guarcello, C., Irace, A., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mezzena, R., Monteduro, A. G., Moretti, R., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Piedjou Komnang, A. S., Piersanti, L., Rettaroli, A., Rizzato, S., Tocci, S., Vinante, A., Zannoni, M., and Giachero, A.

Abstract

Superconducting parametric amplifiers offer the capability to amplify feeble signals with extremely low levels of added noise, potentially reaching quantum-limited amplification. This characteristic makes them essential components in the realm of high-fidelity quantum computing and serves to propel advancements in the field of quantum sensing. In particular, Traveling-Wave Parametric Amplifiers (TWPAs) may be especially suitable for practical applications due to their multi-Gigahertz amplification bandwidth, a feature lacking in Josephson Parametric Amplifiers (JPAs), despite the latter being a more established technology. This paper presents recent developments of the DARTWARS (Detector Array Readout with Traveling Wave AmplifieRS) project, focusing on the latest prototypes of Kinetic Inductance TWPAs (KITWPAs). The project aims to develop a KITWPA capable of achieving 20 dB of amplification. To enhance the production yield, the first prototypes were fabricated with half the length and expected gain of the final device. In this paper, we present the results of the characterization of one of the half-length prototypes. The measurements revealed an average amplification of approximately 9 dB across a 2 GHz bandwidth for a KITWPA spanning 17 mm in length.

Published
2024

14. “A place for my art”: independent artist-run spaces as incubators of artistic careers in Italy.

Author

Puletti, Francesco, Bertacchini, Enrico E., Borrione, Paola, and Arenella, Ottavia

Subjects
*BUSINESS incubators, *JOB descriptions, *LABOR market, *MOTIVATION (Psychology), *INCUBATORS
Abstract

This paper investigates the role of Italian independent artists-run spaces as incubators of artistic careers. Considering the trade-off between the sustainability of artist-run spaces and that of the careers of the people working in them, this article raises questions about the viability of the artists’ support provided by these organizations in the medium and long run. Based on an in-depth analysis of fourteen case studies in Italy, our findings provide evidence of how artist-run spaces’ organizational, managerial, and financial characteristics can work towards the professional development of artistic careers. We identify different trajectories of development of such organizations which vary according to the field of intervention chosen and to the motivation to establish and run the space. Results show how these factors influence the capacity of artist-run spaces to provide more effective strategies than those individually pursued by the artists to face the complexity of their labour market. [ABSTRACT FROM AUTHOR]

Published
2024
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15. Current Induced Resistive State in Fe(Se,Te) Superconducting Nanobridges

Author

Nappi, C., Camerlingo, C., Enrico, E., Bellingeri, E., Braccini, V., Ferdeghini, C., and Sarnelli, E.

Subjects
Condensed Matter - Superconductivity
Abstract

We study the current-voltage characteristics of Fe(Se,Te) thin films deposited on CaF$_2$ substrates in form of nanostrips (width $w\sim\lambda$, $\lambda$ the London penetration length). In view of a possible application of these materials to superconductive electronics and micro-electronics we focus on transport properties in small magnetic field, the one generated by the bias current. From the characteristics taken at different temperatures we derive estimates for the pinning potential $U$ and the pinning potential range $\delta$. Since the sample lines are very narrow, the classical creep flow model provides a sufficiently accurate interpretation of the data only when the attractive interaction between magnetic flux lines of opposite sign is taken into account. The observed voltages and the induced detriment of the critical current of the nanostrips are compatible with the presence of few tens of magnetic field lines at the equilibrium and a strongly inhomogeneous current density distribution. In particular, we argue that the sharp corners defining the bridge geometry represent points of easy magnetic flux lines injection. The results are relevant for creep flow analysis in superconducting Fe(Se,Te) nanostrips., Comment: 21 pages, 7 figures

Published
2016

16. Single-photon emitters based on NIR colour centres in diamond coupled with solid immersion lenses

Author

Monticone, D. Gatto, Forneris, J., Levi, M., Battiato, A., Picollo, F., Olivero, P., Traina, P., Moreva, E., Enrico, E., Brida, G., Degiovanni, I. P., Genovese, M., Amato, G., and Boarino, L.

Subjects
Condensed Matter - Materials Science
Abstract

Single-photon sources represent a key enabling technology in quantum optics, and single colour centres in diamond are a promising platform to serve this purpose, due to their high quantum efficiency and photostability at room temperature. The widely studied nitrogen vacancy centres are characterized by several limitations, thus other defects have recently been considered, with a specific focus of centres emitting in the Near Infra-Red. In the present work, we report on the coupling of native near-infrared-emitting centres in high-quality single crystal diamond with Solid Immersion Lens structures fabricated by Focused Ion Beam lithography. The reported improvements in terms of light collection efficiency make the proposed system an ideal platform for the development of single-photon emitters with appealing photophysical and spectral properties., Comment: 17 pages, 5 figures

Published
2016
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17. Effects of high-power laser irradiation on sub-superficial graphitic layers in single crystal diamond

Author

Picollo, F., Rubanov, S., Tomba, C., Battiato, A., Enrico, E., Perrat-Mabilon, A., Peaucelle, C., Thi, T. N. Tran, Boarino, L., Gheeraert, E., and Olivero, P.

Subjects
Condensed Matter - Materials Science
Abstract

We report on the structural modifications induced by a lambda = 532 nm ns-pulsed high-power laser on sub-superficial graphitic layers in single-crystal diamond realized by means of MeV ion implantation. A systematic characterization of the structures obtained under different laser irradiation conditions (power density, number of pulses) and subsequent thermal annealing was performed by different electron microscopy techniques. The main feature observed after laser irradiation is the thickening of the pre-existing graphitic layer. Cross sectional SEM imaging was performed to directly measure the thickness of the modified layers, and subsequent selective etching of the buried layers was employed to both assess their graphitic nature and enhance the SEM imaging contrast. In particular, it was found that for optimal irradiation parameters the laser processing induces a six-fold increase the thickness of sub superficial graphitic layers without inducing mechanical failures in the surrounding crystal. TEM microscopy and EELS spectroscopy allowed a detailed analysis of the internal structure of the laser irradiated layers, highlighting the presence of different nano graphitic and amorphous layers. The obtained results demonstrate the effectiveness and versatility of high-power laser irradiation for an accurate tuning of the geometrical and structural features of graphitic structures embedded in single crystal diamond, and open new opportunities in diamond fabrication., Comment: 24 pages, 7 figures

Published
2016
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18. Characterization of the recovery of mechanical properties of ion-implanted diamond after thermal annealing

Author

Mohr, M., Picollo, F., Battiato, A., Bernardi, E., Forneris, J., Tengattini, A., Enrico, E., Boarino, L., Bosia, F., Fecht, H. J., and Olivero, P.

Subjects
Condensed Matter - Materials Science
Abstract

Due to their outstanding mechanical properties, diamond and diamond-like materials find significant technological applications ranging from well-established industrial fields (cutting tools, coatings, etc.) to more advanced mechanical devices as micro- and nano-electromechanical systems. The use of energetic ions is a powerful and versatile tool to fabricate three-dimensional micro-mechanical structures. In this context, it is of paramount importance to have an accurate knowledge of the effects of ion-induced structural damage on the mechanical properties of this material, firstly to predict potential undesired side-effects of the ion implantation process, and possibly to tailor the desired mechanical properties of the fabricated devices. We present an Atomic Force Microscopy (AFM) characterization of free-standing cantilevers in single-crystal diamond obtained by a FIB-assisted lift-off technique, which allows a determination of the Young's modulus of the diamond crystal after the MeV ion irradiation process concurrent to the fabrication of the microstructures, and subsequent thermal annealing. The AFM measurements were performed with the beam-bending technique and show that the thermal annealing process allows for an effective recovery of the mechanical properties of the pristine crystal., Comment: 15 pages, 5 figures

Published
2016
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19. Development and characterization of a diamond-insulated graphitic multi electrode array realized with ion beam lithography

Author

Picollo, F., Battiato, A., Carbone, E., Croin, L., Enrico, E., Forneris, J., Gosso, S., Olivero, P., Pasquarelli, A., and Carabelli, V.

Subjects
Physics - Instrumentation and Detectors
Abstract

The detection of quantal exocytic events from neurons and neuroendocrine cells is a challenging task in neuroscience. One of the most promising platforms for the development of a new generation of biosensors is diamond, due to its biocompatibility, transparency and chemical inertness. Moreover, the electrical properties of diamond can be turned from a perfect insulator into a conductive material (resistivity Ohm cm) by exploiting the metastable nature of this allotropic form of carbon. A 16 channels MEA (Multi Electrode Array) suitable for cell culture growing has been fabricated by means of ion implantation. A focused 1.2 MeV He+ beam was scanned on a IIa single-crystal diamond sample (4.5x4.5x0.5 mm3) to cause highly damaged sub-superficial structures that were defined with micrometric spatial resolution. After implantation, the sample was annealed. This process provides the conversion of the sub-superficial highly damaged regions to a graphitic phase embedded in a highly insulating diamond matrix. Thanks to a three-dimensional masking technique, the endpoints of the sub-superficial channels emerge in contact with the sample surface, therefore being available as sensing electrodes. Cyclic voltammetry and amperometry measurements of solutions with increasing concentrations of adrenaline were performed to characterize the biosensor sensitivity. The reported results demonstrate that this new type of biosensor is suitable for in vitro detection of catecholamine release., Comment: 14 pages, 5 figures

Published
2016
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20. Electrical control of deep NV centers in diamond by means of sub-superficial graphitic micro-electrodes

Author

Forneris, J., Tchernij, S. Ditalia, Tengattini, A., Enrico, E., Grilj, V., Skukan, N., Amato, G., Boarino, L., Jakšić, M., and Olivero, P.

Subjects
Physics - Optics, Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

The control of the charge state of nitrogen-vacancy (NV) centers in diamond is of primary importance for the stabilization of their quantum-optical properties, in applications ranging from quantum sensing to quantum computing. To this purpose, in this work current-injecting micro-electrodes were fabricated in bulk diamond for NV charge state control. Buried (i.e. 3 {\mu}m in depth) graphitic micro-electrodes with spacing of 9 {\mu}m were created in single-crystal diamond substrates by means of a 6 MeV C scanning micro-beam. The high breakdown field of diamond was exploited to electrically control the variation in the relative population of the negative (NV-) and neutral (NV0) charge states of sub-superficial NV centers located in the inter- electrode gap regions, without incurring into current discharges. Photoluminescence spectra acquired from the biased electrodes exhibited an electrically induced increase up to 40% in the NV- population at the expense of the NV0 charge state. The variation in the relative charge state populations showed a linear dependence from the injected current at applied biases smaller than 250 V, and was interpreted as the result of electron trapping at NV sites, consistently with the Space Charge Limited Current interpretation of the abrupt current increase observed at 300 V bias voltage. In correspondence of such trap-filling-induced transition to a high-current regime, a strong electroluminescent emission from the NV0 centers was observed. In the high-current-injection regime, a decrease in the NV- population was observed, in contrast with the results obtained at lower bias voltages. These results disclose new possibilities in the electrical control of the charge state of NV centers located in the diamond bulk, which are characterized by longer spin coherence times., Comment: 28 pages, 8 figures

Published
2016
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21. Superconducting Quantum Interference Single-Electron Transistor

Author

Enrico, E. and Giazotto, F.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Superconductivity
Abstract

We propose the concept of a quantized single-electron source based on the interplay between Coulomb blockade and magnetic flux-controllable superconducting proximity effect. We show that flux dependence of the induced energy gap in the density of states of a nanosized metallic wire can be exploited as an efficient tunable energy barrier which enables charge pumping configurations with enhanced functionalities. This control parameter strongly affects the charging landscape of a normal metal island with non-negligible Coulombic energy. Under a suitable evolution of a time-dependent magnetic flux the structure behaves likewise a turnstile for single electrons in a fully electrostatic regime., Comment: 6 pages, 4 colour figures

Published
2016
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22. Electroluminescence from nitrogen-vacancy and interstitial-related centers in bulk diamond stimulated by ion-beam-fabricated sub-superficial graphitic micro-electrodes

Author

Forneris, J., Tchernij, S. Ditalia, Battiato, A., Picollo, F., Tengattini, A., Grilj, V., Skukan, N., Amato, G., Boarino, L., Degiovanni, I. P., Enrico, E., Traina, P., Jakšić, M., Genovese, M., and Olivero, P.

Subjects
Condensed Matter - Materials Science, Quantum Physics
Abstract

We report on the fabrication and characterization of a single-crystal diamond device for the electrical stimula- tion of light emission from nitrogen-vacancy (NV0) and other defect-related centers. Pairs of sub-superficial graphitic micro-electrodes embedded in insulating diamond were fabricated by a 6 MeV C3+ micro-beam irra- diation followed by thermal annealing. A photoluminescence (PL) characterization evidenced a low radiation damage concentration in the inter-electrode gap region, which did not significantly affect the PL features domi- nated by NV centers. The operation of the device in electroluminescence (EL) regime was investigated by ap- plying a bias voltage at the graphitic electrodes, resulting in the injection of a high excitation current above a threshold voltage (~300V), which effectively stimulated an intense EL emission from NV0 centers. In addition, we report on the new observation of two additional sharp EL emission lines (at 563 nm and 580 nm) related to interstitial defects formed during MeV ion beam fabrication.

Published
2015

24. Electrical stimulation of single-photon emission from nitrogen-vacancy centers in diamond with sub-superficial graphitic electrodes

Author

Forneris, J., Monticone, D. Gatto, Traina, P., Grilj, V., Brida, G., Amato, G., Boarino, L., Enrico, E., Degiovanni, I. P., Moreva, E., Skukan, N., Jakšić, M., Genovese, M., and Olivero, P.

Subjects
Condensed Matter - Materials Science, Quantum Physics
Abstract

Focused MeV ion beams with micrometric resolution are suitable tools for the direct writing of conductive graphitic channels buried in an insulating diamond bulk. Their effectiveness has been shown for the fabrication of multi-electrode ionizing radiation detectors and cellular biosensors. In this work we investigate such fabrication method for the electrical excitation of color centers in diamond. Differently from optically-stimulated light emission from color centers in diamond, electroluminescence (EL) requires a high current flowing in the diamond subgap states between the electrodes. With this purpose, buried graphitic electrode pairs with a spacing of 10 $\mu$m were fabricated in the bulk of a single-crystal diamond sample using a 6 MeV C microbeam. The electrical characterization of the structure showed a significant current above an effective voltage threshold of 150V, which was interpreted according to the theory of Space Charge Limited Current. The EL imaging allowed to identify the electroluminescent regions and the residual vacancy distribution associated with the fabrication technique. Measurements evidenced bright electroluminescent emission from native neutrally-charged nitrogen-vacancy centers ($NV^0$); the acquired spectra highlighted the absence of EL associated with radiation damage., Comment: This article has been withdrawn due to the inclusion of additional upgrades and modifications, which significantly improve the paper. A new submission will be performed at a later stage

Published
2014
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25. Electroluminescence from a diamond device with ion-beam-micromachined buried graphitic electrodes

Author

Forneris, J., Battiato, A., Monticone, D. Gatto, Picollo, F., Amato, G., Boarino, L., Brida, G., Degiovanni, I. P., Enrico, E., Genovese, M., Moreva, E., Traina, P., Verona, C., Verona-Rinati, G., and Olivero, P.

Subjects
Condensed Matter - Materials Science, Quantum Physics
Abstract

Focused MeV ion microbeams are suitable tools for the direct writing of conductive graphitic channels buried in an insulating diamond bulk, as demonstrated in previous works with the fabrication of multi-electrode ionizing radiation detectors and cellular biosensors. In this work we investigate the suitability of the fabrication method for the electrical excitation of colour centres in diamond. Differently from photoluminescence, electroluminescence requires an electrical current flowing through the diamond sub-gap states for the excitation of the colour centres. With this purpose, buried graphitic electrodes with a spacing of 10 micrometers were fabricated in the bulk of a detector-grade CVD single-crystal diamond sample using a scanning 1.8 MeV He micro-beam. The current flowing in the gap region between the electrodes upon the application of a 250 V bias voltage was exploited as the excitation pump for the electroluminescence of different types of colour centres localized in the above-mentioned gap. The bright light emission was spatially mapped using a confocal optical microscopy setup. The spectral analysis of electroluminescence revealed the emission from neutrally-charged nitrogen-vacancy centres ($NV^0$, $\lambda_{ZPL}$ = 575 nm), as well as from cluster crystal dislocations (A-band, {\lambda} = 400-500 nm). Moreover, an electroluminescence signal with appealing spectral features (sharp emission at room temperature, low phonon sidebands) from He-related defects was detected ($\lambda_{ZPL}$ = 536.3 nm, $\lambda_{ZPL}$ = 560.5 nm); a low and broad peak around {\lambda} = 740 nm was also observed and tentatively ascribed to Si-V or GR1 centres. These results pose interesting future perspectives for the fabrication of electrically-stimulated single-photon emitters in diamond for applications in quantum optics and quantum cryptography.

Published
2014
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26. Nonlinear Behavior of Josephson Traveling Wave Parametric Amplifiers

Author

Guarcello, C, Ahrens, F, Avallone, G, Barone, C, Borghesi, M, Callegaro, L, Carapella, G, Caricato, A, Carusotto, I, Cian, A, D'Elia, A, Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Granata, V, Leo, A, Labranca, D, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mezzena, R, Monteduro, A, Moretti, R, Nucciotti, A, Oberto, L, Origo, L, Komnang, A, Pagano, S, Piersanti, L, Rettaroli, A, Rizzato, S, Tocci, S, Vinante, A, Zannoni, M, Guarcello, Claudio, Ahrens, Felix, Avallone, Guerino, Barone, Carlo, Borghesi, Matteo, Callegaro, Luca, Carapella, Giovanni, Caricato, Anna Paola, Carusotto, Iacopo, Cian, Alessandro, D'Elia, Alessandro, Gioacchino, Daniele Di, Enrico, Emanuele, Falferi, Paolo, Fasolo, Luca, Faverzani, Marco, Ferri, Elena, Filatrella, Giovanni, Gatti, Claudio, Giachero, Andrea, Giubertoni, Damiano, Granata, Veronica, Leo, Angelo, Labranca, Danilo, Ligi, Carlo, Maccarrone, Giovanni, Mantegazzini, Federica, Margesin, Benno, Maruccio, Giuseppe, Mezzena, Renato, Monteduro, Anna Grazia, Moretti, Roberto, Nucciotti, Angelo, Oberto, Luca, Origo, Luca, Komnang, Alex Stephane Piedjou, Pagano, Sergio, Piersanti, Luca, Rettaroli, Alessio, Rizzato, Silvia, Tocci, Simone, Vinante, Andrea, Zannoni, Mario, Guarcello, C, Ahrens, F, Avallone, G, Barone, C, Borghesi, M, Callegaro, L, Carapella, G, Caricato, A, Carusotto, I, Cian, A, D'Elia, A, Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Granata, V, Leo, A, Labranca, D, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mezzena, R, Monteduro, A, Moretti, R, Nucciotti, A, Oberto, L, Origo, L, Komnang, A, Pagano, S, Piersanti, L, Rettaroli, A, Rizzato, S, Tocci, S, Vinante, A, Zannoni, M, Guarcello, Claudio, Ahrens, Felix, Avallone, Guerino, Barone, Carlo, Borghesi, Matteo, Callegaro, Luca, Carapella, Giovanni, Caricato, Anna Paola, Carusotto, Iacopo, Cian, Alessandro, D'Elia, Alessandro, Gioacchino, Daniele Di, Enrico, Emanuele, Falferi, Paolo, Fasolo, Luca, Faverzani, Marco, Ferri, Elena, Filatrella, Giovanni, Gatti, Claudio, Giachero, Andrea, Giubertoni, Damiano, Granata, Veronica, Leo, Angelo, Labranca, Danilo, Ligi, Carlo, Maccarrone, Giovanni, Mantegazzini, Federica, Margesin, Benno, Maruccio, Giuseppe, Mezzena, Renato, Monteduro, Anna Grazia, Moretti, Roberto, Nucciotti, Angelo, Oberto, Luca, Origo, Luca, Komnang, Alex Stephane Piedjou, Pagano, Sergio, Piersanti, Luca, Rettaroli, Alessio, Rizzato, Silvia, Tocci, Simone, Vinante, Andrea, and Zannoni, Mario

Abstract

Recent advancements in quantum technologies and advanced detection experiments have underscored the pressing need for the detection of exceedingly weak signals within the microwave frequency spectrum. Addressing this challenge, the Josephson Traveling Wave Parametric Amplifier (JTWPA) has been proposed as a cryogenic front-end amplifier capable of approaching the quantum noise limit while providing a relevant bandwidth. This research is centered on a comprehensive numerical investigation of the JTWPA, without resorting to simplifications regarding the nonlinearity of the essential components. Specifically, this study focuses on a thorough examination of the system, characterized by coupled nonlinear differential equations representing all components of the device. Proper input and output signals at the device's boundaries are considered. The analysis of the output signals undergoing the parametric amplification process involves a detailed exploration of phase-space dynamics and Fourier spectral analysis of the output voltage. This study is conducted while considering the parameters ruling the response of the device under pump and signal excitations. In addition to the expected signal amplification, the findings reveal that the nonlinear nature of the system can give rise to unforeseen phenomena, depending on the system's operational conditions, which include: the generation of pump tone harmonics, modulation of the signal gain, and incommensurate frequency generation—effects that are not easily accommodated by simplistic linearized approaches. IEEE

Published
2024

28. Progress in the development of a KITWPA for the DARTWARS project

Author

Borghesi, M, Barone, C, Capelli, S, Carapella, G, Caricato, A, Carusotto, I, Cian, A, Di Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Granata, V, Greco, A, Guarcello, C, Labranca, D, Leo, A, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mauro, C, Mezzena, R, Monteduro, A, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Pierro, V, Piersanti, L, Rajteri, M, Rettaroli, A, Rizzato, S, Vinante, A, Zannoni, M, Borghesi M., Barone C., Capelli S., Carapella G., Caricato A. P., Carusotto I., Cian A., Di Gioacchino D., Enrico E., Falferi P., Fasolo L., Faverzani M., Ferri E., Filatrella G., Gatti C., Giachero A., Giubertoni D., Granata V., Greco A., Guarcello C., Labranca D., Leo A., Ligi C., Maccarrone G., Mantegazzini F., Margesin B., Maruccio G., Mauro C., Mezzena R., Monteduro A. G., Nucciotti A., Oberto L., Origo L., Pagano S., Pierro V., Piersanti L., Rajteri M., Rettaroli A., Rizzato S., Vinante A., Zannoni M., Borghesi, M, Barone, C, Capelli, S, Carapella, G, Caricato, A, Carusotto, I, Cian, A, Di Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Granata, V, Greco, A, Guarcello, C, Labranca, D, Leo, A, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mauro, C, Mezzena, R, Monteduro, A, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Pierro, V, Piersanti, L, Rajteri, M, Rettaroli, A, Rizzato, S, Vinante, A, Zannoni, M, Borghesi M., Barone C., Capelli S., Carapella G., Caricato A. P., Carusotto I., Cian A., Di Gioacchino D., Enrico E., Falferi P., Fasolo L., Faverzani M., Ferri E., Filatrella G., Gatti C., Giachero A., Giubertoni D., Granata V., Greco A., Guarcello C., Labranca D., Leo A., Ligi C., Maccarrone G., Mantegazzini F., Margesin B., Maruccio G., Mauro C., Mezzena R., Monteduro A. G., Nucciotti A., Oberto L., Origo L., Pagano S., Pierro V., Piersanti L., Rajteri M., Rettaroli A., Rizzato S., Vinante A., and Zannoni M.

Abstract

DARTWARS (Detector Array Readout with Traveling Wave AmplifieRS) is a three years project that aims to develop high-performing innovative Traveling Wave Parametric Amplifiers (TWPAs) for low temperature detectors and qubit readout (C-band). The practical development follows two different promising approaches, one based on the Josephson junctions (TWJPA) and the other one based on the kinetic inductance of a high-resistivity superconductor (KITWPA). This paper presents the advancements made by the DARTWARS collaboration to produce a first working prototype of a KITWPA.

Published
2023

29. Ultra low noise readout with traveling wave parametric amplifiers: The DARTWARS project

Author

Rettaroli, A, Barone, C, Borghesi, M, Capelli, S, Carapella, G, Caricato, A, Carusotto, I, Cian, A, Di Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Granata, V, Greco, A, Guarcello, C, Labranca, D, Leo, A, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mauro, C, Mezzena, R, Monteduro, A, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Pierro, V, Piersanti, L, Rajteri, M, Rizzato, S, Vinante, A, Zannoni, M, Rettaroli A., Barone C., Borghesi M., Capelli S., Carapella G., Caricato A. P., Carusotto I., Cian A., Di Gioacchino D., Enrico E., Falferi P., Fasolo L., Faverzani M., Ferri E., Filatrella G., Gatti C., Giachero A., Giubertoni D., Granata V., Greco A., Guarcello C., Labranca D., Leo A., Ligi C., Maccarrone G., Mantegazzini F., Margesin B., Maruccio G., Mauro C., Mezzena R., Monteduro A. G., Nucciotti A., Oberto L., Origo L., Pagano S., Pierro V., Piersanti L., Rajteri M., Rizzato S., Vinante A., Zannoni M., Rettaroli, A, Barone, C, Borghesi, M, Capelli, S, Carapella, G, Caricato, A, Carusotto, I, Cian, A, Di Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Granata, V, Greco, A, Guarcello, C, Labranca, D, Leo, A, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mauro, C, Mezzena, R, Monteduro, A, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Pierro, V, Piersanti, L, Rajteri, M, Rizzato, S, Vinante, A, Zannoni, M, Rettaroli A., Barone C., Borghesi M., Capelli S., Carapella G., Caricato A. P., Carusotto I., Cian A., Di Gioacchino D., Enrico E., Falferi P., Fasolo L., Faverzani M., Ferri E., Filatrella G., Gatti C., Giachero A., Giubertoni D., Granata V., Greco A., Guarcello C., Labranca D., Leo A., Ligi C., Maccarrone G., Mantegazzini F., Margesin B., Maruccio G., Mauro C., Mezzena R., Monteduro A. G., Nucciotti A., Oberto L., Origo L., Pagano S., Pierro V., Piersanti L., Rajteri M., Rizzato S., Vinante A., and Zannoni M.

Abstract

The DARTWARS project has the goal of developing high-performing innovative traveling wave parametric amplifiers with high gain, large bandwidth, high saturation power, and nearly quantum-limited noise. The target frequency region for its applications is 5–10 GHz, where the expected noise temperature is below 600 mK. The development follows two different approaches, one based on Josephson junctions and one based on kinetic inductance of superconductors. This contribution mainly focuses on the Josephson traveling wave parametric amplifier, presenting its design, preliminary measurements and the test of homogeneity of arrays of Josephson junctions.

Published
2023

30. Modeling of Josephson Traveling Wave Parametric Amplifiers

Author

Guarcello, C, Avallone, G, Barone, C, Borghesi, M, Capelli, S, Carapella, G, Caricato, A, Carusotto, I, Cian, A, Di Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Granata, V, Greco, A, Labranca, D, Leo, A, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mauro, C, Mezzena, R, Monteduro, A, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Pierro, V, Piersanti, L, Rajteri, M, Rettaroli, A, Rizzato, S, Vinante, A, Zannoni, M, Guarcello, C., Avallone, G., Barone, C., Borghesi, M., Capelli, S., Carapella, G., Caricato, A. P., Carusotto, I., Cian, A., Di Gioacchino, D., Enrico, E., Falferi, P., Fasolo, L., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giachero, A., Giubertoni, D., Granata, V., Greco, A., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mauro, C., Mezzena, R., Monteduro, A. G., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Pierro, V., Piersanti, L., Rajteri, M., Rettaroli, A., Rizzato, S., Vinante, A., Zannoni, M., Guarcello, C, Avallone, G, Barone, C, Borghesi, M, Capelli, S, Carapella, G, Caricato, A, Carusotto, I, Cian, A, Di Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Granata, V, Greco, A, Labranca, D, Leo, A, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mauro, C, Mezzena, R, Monteduro, A, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Pierro, V, Piersanti, L, Rajteri, M, Rettaroli, A, Rizzato, S, Vinante, A, Zannoni, M, Guarcello, C., Avallone, G., Barone, C., Borghesi, M., Capelli, S., Carapella, G., Caricato, A. P., Carusotto, I., Cian, A., Di Gioacchino, D., Enrico, E., Falferi, P., Fasolo, L., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giachero, A., Giubertoni, D., Granata, V., Greco, A., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mauro, C., Mezzena, R., Monteduro, A. G., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Pierro, V., Piersanti, L., Rajteri, M., Rettaroli, A., Rizzato, S., Vinante, A., and Zannoni, M.

Abstract

The recent developments in quantum technologies, as well as advanced detection experiments, have raised the need to detect extremely weak signals in the microwave frequency spectrum. To this aim, the Josephson travelling wave parametric amplifier, a device capable of reaching the quantum noise limit while providing a wide bandwidth, has been proposed as a suitable cryogenic front-end amplifier. This work deals with the numerical study of a Josephson travelling wave parametric amplifier, without approximations regarding the nonlinearity of the key elements. In particular, we focus on the investigation of the system of coupled nonlinear differential equations representing all the cells of the Josephson travelling wave parametric amplifier, with proper input and output signals at the boundaries. The investigation of the output signals generated by the parametric amplification process explores the phase-space and the Fourier spectral analysis of the output voltage, as a function of the parameters describing the pump and signal tones that excite the device. Beside the expected behavior, i.e., the signal amplification, we show that, depending on the system operation, unwanted effects (such as pump tone harmonics, incommensurate frequency generation, and noise rise), which are not accounted for in simple linearized approaches, can be generated in the whole nonlinear system. IEEE

Published
2023

31. Characterization of Traveling-Wave Josephson Parametric Amplifiers at T = 0.3 K

Author

Granata, V, Avallone, G, Barone, C, Borghesi, M, Capelli, S, Carapella, G, Caricato, A, Carusotto, I, Cian, A, Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Greco, A, Guarcello, C, Labranca, D, Leo, A, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mauro, C, Mezzena, R, Monteduro, A, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Pierro, V, Piersanti, L, Rajteri, M, Rettaroli, A, Rizzato, S, Vinante, A, Zannoni, M, Granata, V., Avallone, G., Barone, C., Borghesi, M., Capelli, S., Carapella, G., Caricato, A. P., Carusotto, I., Cian, A., Gioacchino, D. Di, Enrico, E., Falferi, P., Fasolo, L., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giachero, A., Giubertoni, D., Greco, A., Guarcello, C., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mauro, C., Mezzena, R., Monteduro, A. G., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Pierro, V., Piersanti, L., Rajteri, M., Rettaroli, A., Rizzato, S., Vinante, A., Zannoni, M., Granata, V, Avallone, G, Barone, C, Borghesi, M, Capelli, S, Carapella, G, Caricato, A, Carusotto, I, Cian, A, Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Greco, A, Guarcello, C, Labranca, D, Leo, A, Ligi, C, Maccarrone, G, Mantegazzini, F, Margesin, B, Maruccio, G, Mauro, C, Mezzena, R, Monteduro, A, Nucciotti, A, Oberto, L, Origo, L, Pagano, S, Pierro, V, Piersanti, L, Rajteri, M, Rettaroli, A, Rizzato, S, Vinante, A, Zannoni, M, Granata, V., Avallone, G., Barone, C., Borghesi, M., Capelli, S., Carapella, G., Caricato, A. P., Carusotto, I., Cian, A., Gioacchino, D. Di, Enrico, E., Falferi, P., Fasolo, L., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giachero, A., Giubertoni, D., Greco, A., Guarcello, C., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mauro, C., Mezzena, R., Monteduro, A. G., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Pierro, V., Piersanti, L., Rajteri, M., Rettaroli, A., Rizzato, S., Vinante, A., and Zannoni, M.

Abstract

The growing interest in quantum technologies, from fundamental physics experiments to quantum computing, demands for extremely performing electronics only adding the minimum amount of noise admitted by quantum mechanics to the input signal (i.e. quantum-limited electronics). Superconducting microwave amplifiers, due to their dissipationless nature, exhibit outstanding performances in terms of noise (quantum limited), and gain. However, bandwidth and saturation power still show space for substantial improvement. Within the DARTWARS* collaboration, we are developing state-of-the-art microwave superconducting amplifiers based on Josephson junction arrays and on distributed kinetic inductance transmission lines. Here we report the realization of a setup for the characterization of the performances of Josephson Traveling-Wave Parametric Amplifiers (JTWPA) at a temperature of 300 mK. Although in the final experimental setup these amplifiers will operate at a base temperature of about 20 mK, their characterization at 300 mK allows to evidence the main aspects of their performances, but the ultimate noise level. This represents a quick and relatively inexpensive way to test these superconductive devices that can be of help to improve their design and fabrication. IEEE

Published
2023

36. Coherent Quantum Network of Superconducting Qubits as a Highly Sensitive Detector of Microwave Photons for Searching of Galactic Axions

Author

Gatti, C., primary, Affronte, M., additional, Balanov, A., additional, Bonizzoni, C., additional, Brida, Giorgio, additional, Chiariello, F., additional, Chikhi, N., additional, Coda, G., additional, D'Elia, A., additional, Di Gioacchino, D., additional, Enrico, E., additional, Eremin, I., additional, Ejrnaes, M., additional, Il'ichev, E., additional, Fasolo, L., additional, Fistul, M., additional, Ghirri, A., additional, Greco, A., additional, Ligi, C., additional, Maccarone, G., additional, Meda, A., additional, Navez, P., additional, Oelsner, G., additional, Rajteri, M., additional, Rettaroli, A., additional, Ruggiero, B., additional, Savel'ev, S., additional, Silvestrini, P., additional, Tocci, S., additional, Ustinov, A., additional, Vanacore, P., additional, Zagoskin, A., additional, and Lisitskiy, M., additional

Published
2023
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41. Root Canal Catheterization

Author

Alshahrani, Mohammed, DiVito, Roberto, DiVito, Enrico E., Olivi, Giovanni, editor, De Moor, Roeland, editor, and DiVito, Enrico, editor

Published
2016
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43. Detector Array Readout with Traveling Wave Amplifiers

Author

Giachero, A, Barone, C, Borghesi, M, Carapella, G, Caricato, A, Carusotto, I, Chang, W, Cian, A, Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giubertoni, D, Greco, A, Kutlu, C, Leo, A, Ligi, C, Maccarrone, G, Margesin, B, Maruccio, G, Matlashov, A, Mauro, C, Mezzena, R, Monteduro, A, Nucciotti, A, Oberto, L, Pagano, S, Pierro, V, Piersanti, L, Rajteri, M, Rizzato, S, Semertzidis, Y, Uchaikin, S, Vinante, A, Giachero A., Barone C., Borghesi M., Carapella G., Caricato A. P., Carusotto I., Chang W., Cian A., Gioacchino D. D., Enrico E., Falferi P., Fasolo L., Faverzani M., Ferri E., Filatrella G., Gatti C., Giubertoni D., Greco A., Kutlu C., Leo A., Ligi C., Maccarrone G., Margesin B., Maruccio G., Matlashov A., Mauro C., Mezzena R., Monteduro A. G., Nucciotti A., Oberto L., Pagano S., Pierro V., Piersanti L., Rajteri M., Rizzato S., Semertzidis Y. K., Uchaikin S., Vinante A., Giachero, A, Barone, C, Borghesi, M, Carapella, G, Caricato, A, Carusotto, I, Chang, W, Cian, A, Gioacchino, D, Enrico, E, Falferi, P, Fasolo, L, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giubertoni, D, Greco, A, Kutlu, C, Leo, A, Ligi, C, Maccarrone, G, Margesin, B, Maruccio, G, Matlashov, A, Mauro, C, Mezzena, R, Monteduro, A, Nucciotti, A, Oberto, L, Pagano, S, Pierro, V, Piersanti, L, Rajteri, M, Rizzato, S, Semertzidis, Y, Uchaikin, S, Vinante, A, Giachero A., Barone C., Borghesi M., Carapella G., Caricato A. P., Carusotto I., Chang W., Cian A., Gioacchino D. D., Enrico E., Falferi P., Fasolo L., Faverzani M., Ferri E., Filatrella G., Gatti C., Giubertoni D., Greco A., Kutlu C., Leo A., Ligi C., Maccarrone G., Margesin B., Maruccio G., Matlashov A., Mauro C., Mezzena R., Monteduro A. G., Nucciotti A., Oberto L., Pagano S., Pierro V., Piersanti L., Rajteri M., Rizzato S., Semertzidis Y. K., Uchaikin S., and Vinante A.

Abstract

Reducing noise to the quantum limit over a large bandwidth is a fundamental requirement for future applications operating at millikelvin temperatures, such as the neutrino mass measurement, the next-generation X-ray observatory, the CMB measurement, the dark matter and axion detection, and the rapid high-fidelity readout of superconducting qubits. The read out sensitivity of arrays of microcalorimeter detectors, resonant axion-detectors, and qubits, is currently limited by the noise temperature and bandwidth of the cryogenic amplifiers. The Detector Array Readout with Traveling Wave Amplifiers project has the goal of developing high-performing innovative traveling wave parametric amplifiers with a high gain, a high saturation power, and a quantum-limited or nearly quantum-limited noise. The practical development follows two different promising approaches, one based on the Josephson junctions and the other one based on the kinetic inductance of a high-resistivity superconductor. In this contribution, we present the aims of the project, the adopted design solutions and preliminary results from simulations and measurements.

Published
2022

44. Bimodal Approach for Noise Figures of Merit Evaluation in Quantum-Limited Josephson Traveling Wave Parametric Amplifiers

Author

Fasolo, L, Barone, C, Borghesi, M, Carapella, G, Caricato, A, Carusotto, I, Chung, W, Cian, A, Di Gioacchino, D, Enrico, E, Falferi, P, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Greco, A, Kutlu, C, Leo, A, Ligi, C, Livreri, P, Maccarone, G, Margesin, B, Maruccio, G, Matlashov, A, Mauro, C, Mezzena, R, Monteduro, A, Nucciotti, A, Oberto, L, Pagano, S, Pierro, V, Piersanti, L, Rajteri, M, Rettaroli, A, Rizzato, S, Semertzidis, Y, Uchaikin, S, Vinante, A, Fasolo L., Barone C., Borghesi M., Carapella G., Caricato A. P., Carusotto I., Chung W., Cian A., Di Gioacchino D., Enrico E., Falferi P., Faverzani M., Ferri E., Filatrella G., Gatti C., Giachero A., Giubertoni D., Greco A., Kutlu C., Leo A., Ligi C., Livreri P., Maccarone G., Margesin B., Maruccio G., Matlashov A., Mauro C., Mezzena R., Monteduro A. G., Nucciotti A., Oberto L., Pagano S., Pierro V., Piersanti L., Rajteri M., Rettaroli A., Rizzato S., Semertzidis Y. K., Uchaikin S. V., Vinante A., Fasolo, L, Barone, C, Borghesi, M, Carapella, G, Caricato, A, Carusotto, I, Chung, W, Cian, A, Di Gioacchino, D, Enrico, E, Falferi, P, Faverzani, M, Ferri, E, Filatrella, G, Gatti, C, Giachero, A, Giubertoni, D, Greco, A, Kutlu, C, Leo, A, Ligi, C, Livreri, P, Maccarone, G, Margesin, B, Maruccio, G, Matlashov, A, Mauro, C, Mezzena, R, Monteduro, A, Nucciotti, A, Oberto, L, Pagano, S, Pierro, V, Piersanti, L, Rajteri, M, Rettaroli, A, Rizzato, S, Semertzidis, Y, Uchaikin, S, Vinante, A, Fasolo L., Barone C., Borghesi M., Carapella G., Caricato A. P., Carusotto I., Chung W., Cian A., Di Gioacchino D., Enrico E., Falferi P., Faverzani M., Ferri E., Filatrella G., Gatti C., Giachero A., Giubertoni D., Greco A., Kutlu C., Leo A., Ligi C., Livreri P., Maccarone G., Margesin B., Maruccio G., Matlashov A., Mauro C., Mezzena R., Monteduro A. G., Nucciotti A., Oberto L., Pagano S., Pierro V., Piersanti L., Rajteri M., Rettaroli A., Rizzato S., Semertzidis Y. K., Uchaikin S. V., and Vinante A.

Abstract

The advent of ultra-low noise microwave amplifiers revolutionized several research fields demanding for quantum-limited technologies. Exploiting a theoretical bimodal description of a linear phase-preserving amplifier, in this contribution we analyze some of the intrinsic properties of a model architecture (i.e., an rf-SQUID based Josephson Traveling Wave Parametric Amplifier) in terms of amplification and noise generation for key case study input states (Fock and coherents). Furthermore, we present an analysis of the output signals generated by the parametric amplification mechanism when thermal noise fluctuations feed the device.

Published
2022

46. Novel biomarkers and pathophysiology of membranous nephropathy: PLA2R and beyond.

Author

Murtas, Corrado, Bruschi, Maurizio, Spinelli, Sonia, Kajana, Xhuliana, Verrina, Enrico E, Angeletti, Andrea, Caridi, Gianluca, Candiano, Giovanni, Feriozzi, Sandro, Prunotto, Marco, and Ghiggeri, Gian Marco

Subjects
BIOMARKERS, PATHOLOGICAL physiology, AUTOIMMUNITY, G proteins, MASS spectrometry
Abstract

Research on membranous nephropathy truly exploded in the last 15 years. This happened because of the application of new techniques (laser capture microdissection, mass spectrometry, protein G immunoprecipitation, arrays) to the study of its pathogenesis. After the discovery of PLA2R as the major target antigen, many other antigens were identified and others are probably ongoing. Clinical and pathophysiology rebounds of new discoveries are relevant in terms of diagnosis and prognosis and it is time to make a first assessment of the innovative issues. In terms of classification, target antigens can be divided into: 'membrane antigens' and 'second wave' antigens. The first group consists of antigens constitutionally expressed on the podocyte membrane (as PLA2R) that may become a target of an autoimmune process because of perturbation of immune-tolerance. 'Second wave' antigens are antigens neo-expressed by the podocyte or by infiltrating cells after a stressing event: this allows the immune system to produce antibodies against them that intensify and maintain glomerular damage. With this abundance of target antigens it is not possible, at the moment, to test all antibodies at the bedside. In the absence of this possibility, the role of histological evaluation is still irreplaceable. [ABSTRACT FROM AUTHOR]

Published
2024
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