Quantum criticality from Fisher information

doi:10.1007/s11128-017-1543-9

CSpace > 应用数学研究所

	Quantum criticality from Fisher information
	Song, Hongting 1; Luo, Shunlong2 ; Fu, Shuangshuang 3
	2017-04-01
发表期刊	QUANTUM INFORMATION PROCESSING
ISSN	1570-0755
卷号	16 期号:4 页码:14
摘要	Quantum phase transition is primarily characterized by a qualitative sudden change in the ground state of a quantum system when an external or internal parameter of the Hamiltonian is continuously varied. Investigating quantum criticality using information- theoretic methods has generated fruitful results. Quantum correlations and fidelity have been exploited to characterize the quantum critical phenomena. In this work, we employ quantum Fisher information to study quantum criticality. The singular or extremal point of the quantum Fisher information is adopted as the estimated thermal critical point. By a significant model constructed in Quan et al. (Phys Rev Lett 96: 140604, 2006), the effectiveness of this method is illustrated explicitly.
关键词	Quantum criticality Quantum phase transition Quantum Fisher information Quantum metrology
DOI	10.1007/s11128-017-1543-9
语种	英语
资助项目	NASA Advanced Exploration Systems program and NASA Ames Research Center ; AFRL Information Directorate[F4HBKC4162G001] ; Office of the Director of National Intelligence (ODNI) ; Intelligence Advanced Research Projects Activity (IARPA)[IAA 145483]
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary ; Physics, Mathematical
WOS记录号	WOS:000396813700005
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/25159
专题	应用数学研究所
通讯作者	Fu, Shuangshuang
作者单位	1.China Acad Space Technol, Qian Xuesen Lab Space Technol, Beijing 100094, Peoples R China 2.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China 3.Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Song, Hongting,Luo, Shunlong,Fu, Shuangshuang. Quantum criticality from Fisher information[J]. QUANTUM INFORMATION PROCESSING,2017,16(4):14.
APA	Song, Hongting,Luo, Shunlong,&Fu, Shuangshuang.(2017).Quantum criticality from Fisher information.QUANTUM INFORMATION PROCESSING,16(4),14.
MLA	Song, Hongting,et al."Quantum criticality from Fisher information".QUANTUM INFORMATION PROCESSING 16.4(2017):14.