Factorization of the dephasing process in a quantum open system

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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
ISSN	1539-3755
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
URL	查看原文
收录类别	SCI
WOS记录号	WOS:000243893400007
引用统计	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1978-2010年知识产出
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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