Preservation of Quantum Coherence for Gaussian-State Dynamics in a Non-Markovian Process

doi:10.1088/0256-307X/35/6/060301

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 理论与交叉研究部

	Preservation of Quantum Coherence for Gaussian-State Dynamics in a Non-Markovian Process
	Li, Guan-Qiang 3,4,5; Wen, Jun 1,2
刊名	CHINESE PHYSICS LETTERS
	2018-05-01
卷号	35 期号:6
DOI	10.1088/0256-307X/35/6/060301
文献子类	Article
英文摘要	Coherence is a key resource in quantum information science. Exactly understanding and controlling the variation of coherence are vital for implementation in realistic quantum systems. Using P-representation of density matrix, we obtain the analytical solution of the master equation for the classical states in the non-Markovian process and investigate the coherent dynamics of Gaussian states. It is found that quantum coherence can be preserved in such a process if the coupling strength between system and environment exceeds a threshold value. We also discuss the characteristic function of the Gaussian states in the non-Markovian process, which provides an inevitable bridge for the control and operation of quantum coherence.
WOS关键词	INFORMATION
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000434958000001
资助机构	National Natural Science Foundation of China(11405100 ; National Natural Science Foundation of China(11405100 ; Natural Science Basic Research Plan of Shaanxi Province of China(2015JM1032) ; Natural Science Basic Research Plan of Shaanxi Province of China(2015JM1032) ; Doctoral Research Fund of Shaanxi University of Science and Technology of China(2018BJ-02) ; Doctoral Research Fund of Shaanxi University of Science and Technology of China(2018BJ-02) ; 11404377 ; 11404377 ; 11674360) ; 11674360) ; National Natural Science Foundation of China(11405100 ; National Natural Science Foundation of China(11405100 ; Natural Science Basic Research Plan of Shaanxi Province of China(2015JM1032) ; Natural Science Basic Research Plan of Shaanxi Province of China(2015JM1032) ; Doctoral Research Fund of Shaanxi University of Science and Technology of China(2018BJ-02) ; Doctoral Research Fund of Shaanxi University of Science and Technology of China(2018BJ-02) ; 11404377 ; 11404377 ; 11674360) ; 11674360)
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/11976]
专题	武汉物理与数学研究所_理论与交叉研究部
作者单位	1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Xi An Jiao Tong Univ, Key Lab Quantum Informat & Quantum Optoelect Devi, Xian 710049, Shaanxi, Peoples R China 4.Xi An Jiao Tong Univ, Dept Appl Phys, Xian 710049, Shaanxi, Peoples R China 5.Shaanxi Univ Sci & Technol, Sch Arts & Sci, Xian 710021, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Li, Guan-Qiang,Wen, Jun. Preservation of Quantum Coherence for Gaussian-State Dynamics in a Non-Markovian Process[J]. CHINESE PHYSICS LETTERS,2018,35(6).
APA	Li, Guan-Qiang,&Wen, Jun.(2018).Preservation of Quantum Coherence for Gaussian-State Dynamics in a Non-Markovian Process.CHINESE PHYSICS LETTERS,35(6).
MLA	Li, Guan-Qiang,et al."Preservation of Quantum Coherence for Gaussian-State Dynamics in a Non-Markovian Process".CHINESE PHYSICS LETTERS 35.6(2018).