DECAY OF NONLOCALITY DUE TO ADIABATIC AND QUANTUM NOISE IN THE SOLID STATE

被引：3

作者：

Bellomo, B. ^{[1
,2
]}

Compagno, G. ^{[1
,2
]}

D'Arrigo, A. ^{[3
,4
]}

Falci, G. ^{[3
,4
]}

Lo Franco, R. ^{[1
,2
,3
,4
]}

Paladino, E. ^{[3
,4
]}

机构：

[1] Univ Palermo, CNISM, I-90123 Palermo, Italy

[2] Univ Palermo, Dipartimento Sci Fis & Astron, I-90123 Palermo, Italy

[3] Univ Catania, Dipartimento Metodol Fis & Chim, I-95125 Catania, Italy

[4] CNR IMM MATIS, Catania, Italy

来源：

INTERNATIONAL JOURNAL OF QUANTUM INFORMATION | 2011年 / 9卷

关键词：

Nonlocality; open quantum systems; Josephson charge qubits; SUPERCONDUCTING QUBITS; BELL INEQUALITY; ENTANGLEMENT; CIRCUIT;

D O I：

10.1142/S0219749911007046

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

We study the decay of quantum nonlocality, identified by the violation of the Clauser-Horne-Shimony-Holt (CHSH) Bell inequality, for two noninteracting Josephson qubits subject to independent baths with broadband spectra typical of solid state nanodevices. The bath noise can be separated in an adiabatic (low-frequency) and in a quantum (high-frequency) part. We point out the qualitative different effects on quantum nonlocal correlations induced by adiabatic and quantum noise. A quantitative analysis is performed for typical noise figures in Josephson systems. Finally we compare, for this system, the dynamics of nonlocal correlations and of entanglement.

引用

页码：63 / 71

页数：9

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