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Gao, YB; Wang, YD; Sun, CP; Gao, YB , Beijing Univ Technol, Dept Appl Phys, Beijing 100022, Peoples R China.
Nonlinear mechanism of charge-qubit decoherence in a lossy cavity: Quasi-normal-mode approach
发表期刊PHYSICAL REVIEW A
关键词Macroscopic Quantum States Cooper-pair-box Josephson-junction
摘要From the viewpoint of quasinormal modes, we describe a decoherence mechanism of charge qubit of Josephson junctions (JJ) in a lossy microcavity, which can appear in a realistic experiment for quantum computation based on a JJ qubit. We show that nonlinear coupling of a charge qubit to the quantum cavity field can result in additional dissipation of the resonant mode due to the effective interaction between those nonresonant modes and the resonant mode, which is induced by the charge qubit itself. We calculate the characteristic time of the decoherence by making use of the system plus bath method.
2005
ISSN1050-2947
卷号71期号:3页码:-
学科领域Physics
收录类别SCI
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13867
专题理论物理所科研产出_SCI论文
通讯作者Gao, YB , Beijing Univ Technol, Dept Appl Phys, Beijing 100022, Peoples R China.
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Gao, YB,Wang, YD,Sun, CP,et al. Nonlinear mechanism of charge-qubit decoherence in a lossy cavity: Quasi-normal-mode approach[J]. PHYSICAL REVIEW A,2005,71(3):-.
APA Gao, YB,Wang, YD,Sun, CP,&Gao, YB , Beijing Univ Technol, Dept Appl Phys, Beijing 100022, Peoples R China..(2005).Nonlinear mechanism of charge-qubit decoherence in a lossy cavity: Quasi-normal-mode approach.PHYSICAL REVIEW A,71(3),-.
MLA Gao, YB,et al."Nonlinear mechanism of charge-qubit decoherence in a lossy cavity: Quasi-normal-mode approach".PHYSICAL REVIEW A 71.3(2005):-.
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