Superconducting charge qubits: The roles of self and mutual inductances

被引：32

作者：

You, JQ

Lam, CH

Zheng, HZ

机构：

[1] Chinese Acad Sci, Inst Semicond, Natl Lab Superlattices & Microstruct, Beijing 100083, Peoples R China

[2] Hong Kong Polytech Univ, Dept Appl Phys, Hong Kong, Hong Kong, Peoples R China

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.63.180501

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the essential roles of self and mutual inductances in superconducting charge qubits and propose a scheme to couple charge qubits by means of mutual inductance. We also show that the Hamiltonians can be exactly formulated in compact forms in the spin-1/2 representation for both single- and double-qubit structures.

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页数：4

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共 18 条

[1] Adiabatic quantum computation with Cooper pairs [J].

Averin, DV .

SOLID STATE COMMUNICATIONS, 1998, 105 (10) :659-664

[2] Coupled quantum dots as quantum gates [J].

Burkard, G ;

Loss, D ;

DiVincenzo, DP .

PHYSICAL REVIEW B, 1999, 59 (03) :2070-2078

[3] QUANTUM COMPUTATIONS WITH COLD TRAPPED IONS [J].

CIRAC, JI ;

ZOLLER, P .

PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4091-4094

[4] Ensemble quantum computing by NMR spectroscopy [J].

Cory, DG ;

Fahmy, AF ;

Havel, TF .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1997, 94 (05) :1634-1639

[5] UNIVERSALITY IN QUANTUM COMPUTATION [J].

DEUTSCH, D ;

BARENCO, A ;

EKERT, A .

PROCEEDINGS OF THE ROYAL SOCIETY-MATHEMATICAL AND PHYSICAL SCIENCES, 1995, 449 (1937) :669-677

[6] Bulk spin-resonance quantum computation [J].

Gershenfeld, NA ;

Chuang, IL .

SCIENCE, 1997, 275 (5298) :350-356

[7] Hilbert-space structure of a solid-state quantum computer: Two-electron states of a double-quantum-dot artificial molecule [J].

Hu, XD ;

Das Sarma, S .

PHYSICAL REVIEW A, 2000, 61 (06) :19

[8] Environmentally decoupled sds-wave Josephson junctions for quantum computing [J].

Ioffe, LB ;

Geshkenbein, VB ;

Feigel'man, MV ;

Fauchère, AL ;

Blatter, G .

NATURE, 1999, 398 (6729) :679-681

[9] A silicon-based nuclear spin quantum computer [J].

Kane, BE .

NATURE, 1998, 393 (6681) :133-137

[10] ALMOST ANY QUANTUM LOGIC GATE IS UNIVERSAL [J].

LLOYD, S .

PHYSICAL REVIEW LETTERS, 1995, 75 (02) :346-349