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Factorization of the dephasing process in a quantum open system
Gao, Y. B.; Sun, C. P.; Gao, YB , Beijing Univ Technol, Coll Appl Sci, Beijing 100022, Peoples R China
2007
发表期刊PHYSICAL REVIEW E
ISSN1539-3755
卷号75期号:1页码:-
摘要The fluctuation-dissipation relation is well known for a quantum open system with energy dissipation. In this paper a similar underlying relation is found between the bath fluctuation and the dephasing of the quantum open system, for which energy is conserved, but the information is leaking into the bath. To obtain this relation we revisit the universal, but simple dephasing model with a quantum nondemolition interaction between the bath and the open system. Then we show that the decoherence factor describing the dephasing process is factorized into two parts, to indicate the two sources of dephasing, the vacuum quantum fluctuation, and the thermal excitations defined in the initial state of finite temperature.
部门归属Beijing Univ Technol, Coll Appl Sci, Beijing 100022, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Fluctuation-dissipation Theorem Wave-function General Picture Decoherence Dynamics
学科领域Physics
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收录类别SCI
WOS记录号WOS:000243893400007
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5803
专题理论物理所SCI论文
通讯作者Gao, YB , Beijing Univ Technol, Coll Appl Sci, Beijing 100022, Peoples R China
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GB/T 7714
Gao, Y. B.,Sun, C. P.,Gao, YB , Beijing Univ Technol, Coll Appl Sci, Beijing 100022, Peoples R China. Factorization of the dephasing process in a quantum open system[J]. PHYSICAL REVIEW E,2007,75(1):-.
APA Gao, Y. B.,Sun, C. P.,&Gao, YB , Beijing Univ Technol, Coll Appl Sci, Beijing 100022, Peoples R China.(2007).Factorization of the dephasing process in a quantum open system.PHYSICAL REVIEW E,75(1),-.
MLA Gao, Y. B.,et al."Factorization of the dephasing process in a quantum open system".PHYSICAL REVIEW E 75.1(2007):-.
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