Single-particle machine for quantum thermalization

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	Single-particle machine for quantum thermalization
	Dong, H.; Liao, JQ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; Liao, Jie-Qiao; Sun, C. P.
刊名	PHYSICAL REVIEW A
	2010
卷号	81 期号:5 页码:-
关键词	Superconducting Qubit Statistical-mechanics Pumping Statistics Atomic-injection Micromaser Maser States Coherence Dynamics Photon
ISSN号	1050-2947
英文摘要	The long time accumulation of the random actions of a single particle "reservoir" on its coupled system can transfer some temperature information of its initial state to the coupled system. This dynamic process can be referred to as a quantum thermalization in the sense that the coupled system can reach a stable thermal equilibrium with a temperature equal to that of the reservoir. We illustrate this idea based on the usual micromaser model, in which a series of initially prepared two-level atoms randomly pass through an electromagnetic cavity. It is found that, when the randomly injected atoms are initially prepared in a thermal equilibrium state with a given temperature, the cavity field will reach a thermal equilibrium state with the same temperature as that of the injected atoms. As in two limit cases, the cavity field can be cooled and "coherently heated" as a maser process, respectively, when the injected atoms are initially prepared in ground and excited states. Especially, when the atoms in equilibrium are driven to possess some coherence, the cavity field may reach a higher temperature in comparison with the injected atoms. We also point out a possible experimental test for our theoretical prediction based on a superconducting circuit QED system.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000278140000038
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5111]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Liao, JQ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Dong, H.,Liao, JQ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China,Liao, Jie-Qiao,et al. Single-particle machine for quantum thermalization[J]. PHYSICAL REVIEW A,2010,81(5):-.
APA	Dong, H.,Liao, JQ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China,Liao, Jie-Qiao,&Sun, C. P..(2010).Single-particle machine for quantum thermalization.PHYSICAL REVIEW A,81(5),-.
MLA	Dong, H.,et al."Single-particle machine for quantum thermalization".PHYSICAL REVIEW A 81.5(2010):-.