Factorization of the dephasing process in a quantum open system

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	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
发表期刊	PHYSICAL REVIEW E
关键词	Fluctuation-dissipation Theorem Wave-function General Picture Decoherence Dynamics
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.
	2007
ISSN	1539-3755
卷号	75 期号:1 页码:-
学科领域	Physics
收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.itp.ac.cn/handle/311006/5803
专题	理论物理所科研产出_SCI论文
通讯作者	Gao, YB , Beijing Univ Technol, Coll Appl Sci, Beijing 100022, Peoples R China
推荐引用方式 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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