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Quantum superinductor with tunable nonlinearity
- Source :
- Physical review letters. 109(13)
- Publication Year :
- 2012
-
Abstract
- We report on the realization of a superinductor, a dissipationless element whose microwave impedance greatly exceeds the resistance quantum. The design of the superinductor, implemented as a ladder of nanoscale Josephson junctions, enables tuning of the inductance and its nonlinearity by a weak magnetic field. The Rabi decay time of the superinductor-based qubit exceeds 1 microsecond. The high kinetic inductance and strong nonlinearity offer new types of functionality, including the development of qubits protected from both flux and charge noises, fault tolerant quantum computing, and high-impedance isolation for electrical current standards based on Bloch oscillations.<br />text 4 pages, supplementary materials 6 pages
- Subjects :
- Josephson effect
Physics
Flux qubit
Condensed matter physics
Condensed Matter - Superconductivity
FOS: Physical sciences
General Physics and Astronomy
02 engineering and technology
021001 nanoscience & nanotechnology
7. Clean energy
01 natural sciences
Kinetic inductance
Superconductivity (cond-mat.supr-con)
Inductance
Quantum mechanics
Qubit
0103 physical sciences
Bloch oscillations
010306 general physics
0210 nano-technology
Quantum
Quantum computer
Subjects
Details
- ISSN :
- 10797114
- Volume :
- 109
- Issue :
- 13
- Database :
- OpenAIRE
- Journal :
- Physical review letters
- Accession number :
- edsair.doi.dedup.....b26b43628ec59991b48eb0f15cd67dde