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37 results on '"Marinari A"'

1. Scaling Law Describes the Spin-Glass Response in Theory, Experiments, and Simulations

Author

Enzo Marinari, Marco Baity-Jesi, Enrico Calore, David Iñiguez, A. Cruz, Beatriz Seoane, Andrea Maiorano, I. Gonzalez-Adalid Pemartin, Victor Martin-Mayor, A. Muñoz-Sudupe, Deborah L. Schlagel, Alfonso Tarancón, Raymond Lee Orbach, Qiang Zhai, L. A. Fernandez, Sebastiano Fabio Schifano, Raffaele Tripiccione, Giorgio Parisi, David Yllanes, Denis Navarro, J. Moreno-Gordo, I. Paga, Federico Ricci-Tersenghi, Antonio Gordillo-Guerrero, Juan J. Ruiz-Lorenzo, J. M. Gil-Narvion, and Sergio Perez-Gaviro

Subjects
Physical Systems, Disordered systems, Glassy systems, Spin glasses, Scaling law, Spin glass, General Physics and Astronomy, FOS: Physical sciences, 01 natural sciences, Condensed Matter::Disordered Systems and Neural Networks, NO, Spin glasses, 0103 physical sciences, Statistical physics, Janus, 010306 general physics, Analysis method, Condensed Matter - Statistical Mechanics, Physics, Statistical Mechanics (cond-mat.stat-mech), Física, Disordered Systems and Neural Networks (cond-mat.dis-nn), Physical Systems, Condensed Matter - Disordered Systems and Neural Networks, PE2_18, Magnetic field, Condensed Matter::Soft Condensed Matter, Disordered systems, Spin glasses, disorder system, theory and experiments, Glass transition, Single crystal, Glassy systems
Abstract

The correlation length $\xi$, a key quantity in glassy dynamics, can now be precisely measured for spin glasses both in experiments and in simulations. However, known analysis methods lead to discrepancies either for large external fields or close to the glass temperature. We solve this problem by introducing a scaling law that takes into account both the magnetic field and the time-dependent spin-glass correlation length. The scaling law is successfully tested against experimental measurements in a CuMn single crystal and against large-scale simulations on the Janus II dedicated computer., Comment: Revised version, including supplemental material

Published
2020

2. Scaling Law Describes the Spin-Glass Response in Theory, Experiments, and Simulations

Author

Zhai, Q., primary, Paga, I., additional, Baity-Jesi, M., additional, Calore, E., additional, Cruz, A., additional, Fernandez, L. A., additional, Gil-Narvion, J. M., additional, Gonzalez-Adalid Pemartin, I., additional, Gordillo-Guerrero, A., additional, Iñiguez, D., additional, Maiorano, A., additional, Marinari, E., additional, Martin-Mayor, V., additional, Moreno-Gordo, J., additional, Muñoz-Sudupe, A., additional, Navarro, D., additional, Orbach, R. L., additional, Parisi, G., additional, Perez-Gaviro, S., additional, Ricci-Tersenghi, F., additional, Ruiz-Lorenzo, J. J., additional, Schifano, S. F., additional, Schlagel, D. L., additional, Seoane, B., additional, Tarancon, A., additional, Tripiccione, R., additional, and Yllanes, D., additional

Published
2020
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3. Aging Rate of Spin Glasses from Simulations Matches Experiments

Author

Janus Collaboration, Baity-Jesi, M., Calore, E., Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Gordillo-Guerrero, A., Iñiguez, D., Maiorano, A., Marinari, E., Martin-Mayor, V., Moreno-Gordo, J., Muñoz-Sudupe, A., Navarro, D., Parisi, G., Perez-Gaviro, S., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J., Schifano, S. F., Seoane, B., Tarancon, A., Tripiccione, R., and Yllanes, D.

Subjects
spin glasses, numerical simulations, disordered systems, Física-Modelos matemáticos, Spin glass, glass models, Crossover, FOS: Physical sciences, General Physics and Astronomy, Fixed point, spin glass, 01 natural sciences, 010305 fluids & plasmas, NO, 0103 physical sciences, Ising model, Janus, 010306 general physics, Condensed Matter - Statistical Mechanics, Physics, spin glass, Ising model, glass models, Statistical Mechanics (cond-mat.stat-mech), Condensed matter physics, Disordered Systems and Neural Networks (cond-mat.dis-nn), Condensed Matter - Disordered Systems and Neural Networks, Exponent, Value (mathematics)
Abstract

Experiments on spin glasses can now make precise measurements of the exponent $z(T)$ governing the growth of glassy domains, while our computational capabilities allow us to make quantitative predictions for experimental scales. However, experimental and numerical values for $z(T)$ have differed. We use new simulations on the Janus II computer to resolve this discrepancy, finding a time-dependent $z(T, t_w)$, which leads to the experimental value through mild extrapolations. Furthermore, theoretical insight is gained by studying a crossover between the $T = T_c$ and $T = 0$ fixed points., Version accepted for publication in PRL. 12 pages, 9 figures

Published
2018

4. Numerical Construction of the Aizenman-Wehr Metastate

Author

Billoire, A., primary, Fernandez, L. A., additional, Maiorano, A., additional, Marinari, E., additional, Martin-Mayor, V., additional, Moreno-Gordo, J., additional, Parisi, G., additional, Ricci-Tersenghi, F., additional, and Ruiz-Lorenzo, J. J., additional

Published
2017
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5. Ranking Vertices or Edges of a Network by Loops: A New Approach

Author

Enzo Marinari and Valery Van Kerrebroeck

Subjects
Loop (graph theory), Computer science, General Physics and Astronomy, Complex network, Topology, Measure (mathematics), Ranking (information retrieval)
Abstract

We introduce loop ranking, a new ranking measure based on the detection of closed paths, which can be computed in an efficient way. We analyze it with respect to several ranking measures which have been proposed in the past, and are widely used to capture the relative importance of the vertices in complex networks. We argue that loop ranking is a very appropriate measure to quantify the role of both vertices and edges in the network traffic.

Published
2008
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6. Inference of DNA Sequences from Mechanical Unzipping: An Ideal-Case Study

Author

V. Baldazzi, Enzo Marinari, Simona Cocco, and R. Monasson

Subjects
inferring, Biophysics, FOS: Physical sciences, General Physics and Astronomy, Inference, Bayesian inference, Quantitative Biology - Quantitative Methods, Biophysical Phenomena, DNA sequencing, chemistry.chemical_compound, Bayes' theorem, Exponential growth, Molecule, A-DNA, Statistical physics, Condensed Matter - Statistical Mechanics, Quantitative Methods (q-bio.QM), Physics, Quantitative Biology::Biomolecules, Models, Statistical, Statistical Mechanics (cond-mat.stat-mech), Base Sequence, DNA, sequences, Bayes Theorem, Disordered Systems and Neural Networks (cond-mat.dis-nn), Sequence Analysis, DNA, Condensed Matter - Disordered Systems and Neural Networks, Quantitative Biology::Genomics, Bacteriophage lambda, Elasticity, chemistry, FOS: Biological sciences, DNA, Viral, Thermodynamics
Abstract

We introduce and test a method to predict the sequence of DNA molecules from in silico unzipping experiments. The method is based on Bayesian inference and on the Viterbi decoding algorithm. The probability of misprediction decreases exponentially with the number of unzippings, with a decay rate depending on the applied force and the sequence content., Comment: Source as TeX file with ps figures

Published
2006
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8. Static versus Dynamic Heterogeneities in theD=3Edwards-Anderson-Ising Spin Glass

Author

Alvarez Baños, R., primary, Cruz, A., additional, Fernandez, L. A., additional, Gil-Narvion, J. M., additional, Gordillo-Guerrero, A., additional, Guidetti, M., additional, Maiorano, A., additional, Mantovani, F., additional, Marinari, E., additional, Martin-Mayor, V., additional, Monforte-Garcia, J., additional, Muñoz Sudupe, A., additional, Navarro, D., additional, Parisi, G., additional, Perez-Gaviro, S., additional, Ruiz-Lorenzo, J. J., additional, Schifano, S. F., additional, Seoane, B., additional, Tarancon, A., additional, Tripiccione, R., additional, and Yllanes, D., additional

Published
2010
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9. 4D simplicial quantum gravity with a nontrivial measure

Author

Enzo Marinari and Bernd Brügmann

Subjects
Physics, High Energy Physics - Theory, Causal dynamical triangulation, Critical phenomena, High Energy Physics - Lattice (hep-lat), Mean value, FOS: Physical sciences, General Physics and Astronomy, General Relativity and Quantum Cosmology (gr-qc), General Relativity and Quantum Cosmology, Universality (dynamical systems), High Energy Physics - Lattice, High Energy Physics - Theory (hep-th), Group field theory, Quantum gravity, Quantum, Phase diagram, Mathematical physics
Abstract

We study 4d simplicial quantum gravity in the dynamical triangulation approach with a non-trivial class of measures. We find that the measure contribution plays an important role, influencing the phase diagram and the nature of the (possible) critical theory. We discuss how the lattice theory could be used to fix the quantum measure in a non-ambiguous way., 4 pages text, 4 figures on 1 page included as postscript file

Published
1993

10. Nonequilibrium Spin-Glass Dynamics from Picoseconds to a Tenth of a Second

Author

Belletti, F., primary, Cotallo, M., additional, Cruz, A., additional, Fernandez, L. A., additional, Gordillo-Guerrero, A., additional, Guidetti, M., additional, Maiorano, A., additional, Mantovani, F., additional, Marinari, E., additional, Martin-Mayor, V., additional, Sudupe, A. Muñoz, additional, Navarro, D., additional, Parisi, G., additional, Perez-Gaviro, S., additional, Ruiz-Lorenzo, J. J., additional, Schifano, S. F., additional, Sciretti, D., additional, Tarancon, A., additional, Tripiccione, R., additional, Velasco, J. L., additional, and Yllanes, D., additional

Published
2008
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21. Marinariet al.Reply

Author

Marinari, E., primary, Naitza, C., additional, Zuliani, F., additional, Parisi, G., additional, Picco, M., additional, and Ritort, F., additional

Published
1999
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25. Marinariet al.Reply

Author

C. Naitza, Enzo Marinari, Felix Ritort, Giorgio Parisi, F. Zuliani, and Marco Picco

Subjects
0103 physical sciences, General Physics and Astronomy, 010306 general physics, 01 natural sciences, 010305 fluids & plasmas
Published
1999
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26. Comment on 'Evidence for the Droplet Picture of Spin Glasses'

Author

Enzo Marinari, Giorgio Parisi, Juan J. Ruiz-Lorenzo, and F. Zuliani

Subjects
Condensed Matter::Soft Condensed Matter, Physics, Spin glass, Condensed matter physics, General Physics and Astronomy, Ising spin, Condensed Matter::Strongly Correlated Electrons, Condensed Matter::Disordered Systems and Neural Networks
Abstract

In a recent letter Moore et al. claim to exhibit evidence for a non-mean-field behavior of the $3d$ Ising spin glass. We show that their claim is insubstantial, and by analyzing in detail the behavior of the Migdal-Kadanoff approximation (MKA) as compared to the behavior of the Edwards-Anderson (EA) spin glass we find further evidence of a mean-field like behavior of the $3d$ spin glass.

Published
1999
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30. Order of the Deconfining Phase Transition in Pure-Gauge QCD

Author

N. Cabibbo, Ettore Remiddi, L. A. Fernandez, Alfonso Tarancón, Simone Cabasino, P. A. Marchesini, Pierluigi Paolucci, Enzo Marinari, W. Tross, Giorgio Parisi, M. Bernashchi, G.M. Todesco, F. Coppola, A. Lai, Gaetano Salina, Maria Paola Lombardo, Federico Rapuano, Francesco Marzano, P. Bacilieri, Raffaele Tripiccione, E. Simeone, Giovanni Fiorentini, Bacilieri, P, Remiddi, E, Todesco, G, Bernashchi, M, Cabasino, S, Cabibbo, N, Fernández, L, Marinari, E, Paolucci, P, Parisi, G, Salina, G, Tarancón, A, Coppola, F, Lombardo, M, Simeone, E, Tripiccione, R, Fiorentini, G, Lai, A, Marchesini, P, Marzano, F, Rapuano, F, and Tross, W

Subjects
Physics, Quantum chromodynamics, Phase transition, Física-Modelos matemáticos, Condensed matter physics, High Energy Physics::Lattice, Quark model, Lattice field theory, General Physics and Astronomy, FIS/02 - FISICA TEORICA, MODELLI E METODI MATEMATICI, lattice qcd, Critical point (thermodynamics), Lattice gauge theory, Quantum mechanics, Lattice (order), Quantum field theory
Abstract

We study the behavior of the string tension in the SU(3) lattice pure-gauge theory close to the deconfining critical point. We find very large correlation lengths, increasing with the lattice size. This result is strongly suggestive of a second-order phase transition, and excludes the presence of a strong first-order transition. © 1988 The American Physical Society.

Published
1988
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31. Computer Estimates of Meson Masses in SU (2) Lattice Gauge Theory

Author

Giorgio Parisi, Claudio Rebbi, and Enzo Marinari

Subjects
Quark, Physics, Particle physics, Hamiltonian lattice gauge theory, Meson, High Energy Physics::Lattice, Lattice gauge theory, High Energy Physics::Phenomenology, Lattice field theory, General Physics and Astronomy, Gauge theory, Quantum field theory, Symmetry (physics)
Abstract

It is shown that in an SU(2) lattice gauge theory, in the approximation where internal quark closed loops are neglected, chiral symmetry is broken. With use of partially conserved axial-vector current f/sub ..pi../, the bare masses of the u and d quarks, and the rho and delta masses are estimated.

Published
1981
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32. Random Walk in a Random Environment and1fNoise

Author

Giorgio Parisi, Enzo Marinari, David Ruelle, and P. Windey

Subjects
Physics, Random field, Heterogeneous random walk in one dimension, Basis (linear algebra), Simple (abstract algebra), Stochastic simulation, General Physics and Astronomy, Random walk, Noise (electronics), Scaling, Mathematical physics
Abstract

A simple model showing a $\frac{1}{f}$ behavior is proposed. It is argued, on the basis of a scaling argument, that is has ${(\mathrm{ln}f)}^{k}$ corrections. Numerical simulations confirm this picture.

Published
1983
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33. Order of the Deconfining Phase Transition in Pure-Gauge QCD

Author

Bacilieri, P., primary, Remiddi, E., additional, Todesco, G. M., additional, Bernashchi, M., additional, Cabasino, S., additional, Cabibbo, N., additional, Fernández, L. A., additional, Marinari, E., additional, Paolucci, P., additional, Parisi, G., additional, Salina, G., additional, Tarancón, A., additional, Coppola, F., additional, Lombardo, M. P., additional, Simeone, E., additional, Tripiccione, R., additional, Fiorentini, G., additional, Lai, A., additional, Marchesini, P. A., additional, Marzano, F., additional, Rapuano, F., additional, and Tross, W., additional

Published
1988
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36. Aging Rate of Spin Glasses from Simulations Matches Experiments.

Author

Baity-Jesi, M., Calore, E., Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Gordillo-Guerrero, A., Iñiguez, D., Maiorano, A., Marinari, E., Martin-Mayor, V., Moreno-Gordo, J., Muñoz-Sudupe, A., Navarro, D., Parisi, G., Perez-Gaviro, S., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J., Schifano, S. F., Seoane, B., and Tarancon, A.

Subjects
*AGING, *SPIN glasses, *EXTRAPOLATION
Abstract

Experiments on spin glasses can now make precise measurements of the exponent z(T) governing the growth of glassy domains, while our computational capabilities allow us to make quantitative predictions for experimental scales. However, experimental and numerical values for z(T) have differed. We use new simulations on the Janus II computer to resolve this discrepancy, finding a time-dependent z(T,tw), which leads to the experimental value through mild extrapolations. Furthermore, theoretical insight is gained by studying a crossover between the T=Tc and T=0 fixed points. [ABSTRACT FROM AUTHOR]

Published
2018
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37. Matching Microscopic and Macroscopic Responses in Glasses.

Author

Baity-Jesi, M., Calore, E., Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Gordillo-Guerrero, A., Iñiguez, D., Maiorano, A., Marinari, E., Martin-Mayor, V., Monforte-Garcia, J., Muñoz-Sudupe, A., Navarro, D., Parisi, G., Perez-Gaviro, S., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J., Schifano, S. F., Seoane, B., and Tarancon, A.

Subjects
*FREE energy (Thermodynamics), *ZEEMAN effect
Abstract

We first reproduce on the Janus and Janus II computers a milestone experiment that measures the spin-glass coherence length through the lowering of free-energy barriers induced by the Zeeman effect. Secondly, we determine the scaling behavior that allows a quantitative analysis of a new experiment reported in the companion Letter [S. Guchhait and R. Orbach, Phys. Rev. Lett. 118, 157203 (2017)]. The value of the coherence length estimated through the analysis of microscopic correlation functions turns out to be quantitatively consistent with its measurement through macroscopic response functions. Further, nonlinear susceptibilities, recently measured in glass-forming liquids, scale as powers of the same microscopic length. [ABSTRACT FROM AUTHOR]

Published
2017
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