Quantum Superinductor with Tunable Nonlinearity

被引：97

作者：

Bell, M. T. ^{[1
]}

Sadovskyy, I. A. ^{[1
]}

Ioffe, L. B. ^{[1
,2
]}

Kitaev, A. Yu. ^{[3
]}

Gershenson, M. E. ^{[1
]}

机构：

[1] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

[2] CNRS, LPTHE, UMR 7589, F-75252 Paris, France

[3] CALTECH, Inst Quantum Informat, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 13期

基金：

美国国家科学基金会;

关键词：

CIRCUIT;

D O I：

10.1103/PhysRevLett.109.137003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the realization of a superinductor, a dissipationless element whose microwave impedance greatly exceeds the resistance quantum R-Q. 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 mu s. 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.

引用

页数：5

共 20 条

[1] Tunable superconducting nanoinductors
Annunziata, Anthony J.
Santavicca, Daniel F.
Frunzio, Luigi
Catelani, Gianluigi
Rooks, Michael J.
Frydman, Aviad
Prober, Daniel E.
[J]. NANOTECHNOLOGY, 2010, 21 (44)
[2] [Anonymous], ARXIVCONDMAT0609441
[3] Averin D. V., 1991, SINGLE ELECT CORRELA, P173
[4] Phase-charge duality of a Josephson junction in a fluctuating electromagnetic environment
Corlevi, S.
Guichard, W.
Hekking, F. W. J.
Haviland, D. B.
[J]. PHYSICAL REVIEW LETTERS, 2006, 97 (09)
[5] Physical implementation of protected qubits
Doucot, B.
Ioffe, L. B.
[J]. REPORTS ON PROGRESS IN PHYSICS, 2012, 75 (07)
[6] OBSERVATION OF THE AHARONOV-CASHER EFFECT FOR VORTICES IN JOSEPHSON-JUNCTION ARRAYS
ELION, WJ
WACHTERS, JJ
SOHN, LL
MOOIJ, JE
[J]. PHYSICAL REVIEW LETTERS, 1993, 71 (14) : 2311 - 2314
[7] Charging Effects in the Inductively Shunted Josephson Junction
Koch, Jens
Manucharyan, V.
Devoret, M. H.
Glazman, L. I.
[J]. PHYSICAL REVIEW LETTERS, 2009, 103 (21)
[8] Superconducting nanowires as nonlinear inductive elements for qubits
Ku, Jaseung
Manucharyan, Vladimir
Bezryadin, Alexey
[J]. PHYSICAL REVIEW B, 2010, 82 (13):
[9] THEORY OF THE BLOCH-WAVE OSCILLATIONS IN SMALL JOSEPHSON-JUNCTIONS
LIKHAREV, KK
ZORIN, AB
[J]. JOURNAL OF LOW TEMPERATURE PHYSICS, 1985, 59 (3-4) : 347 - 382
[10] Manucharyan V., 2012, Ph.D. thesis

← 1 2 →