Wigner function, Wigner-Yanase skew information, and parity asymmetry

doi:10.1016/j.physleta.2021.127222

CORC > 数学与系统科学研究院 > 中国科学院数学与系统科学研究院 > 应用数学研究所

	Wigner function, Wigner-Yanase skew information, and parity asymmetry
	Zhang, Yue 1,4; Luo, Shunlong 2,3
刊名	PHYSICS LETTERS A
	2021-04-16
卷号	395 页码:11
关键词	Wigner function Parity operator Wigner-Yanase skew information Parity asymmetry
ISSN号	0375-9601
DOI	10.1016/j.physleta.2021.127222
英文摘要	The Wigner function, a position-momentum joint distribution introduced by Wigner in 1932 as a quantum correction for thermodynamics, plays a fundamental role in the phase-space formulation of quantum mechanics. The Wigner-Yanase skew information, an information-theoretic concept introduced by Wigner and Yanase in 1963 for quantifying information contents of quantum states, remains almost unnoticed until 2000s and is now playing an increasingly important role in quantum information theory. Apart from the appearance of the name Wigner, the relations between these two important concepts seem to have attracted little attention. In this work, by exploiting symmetry and asymmetry of bosonic field states with respect to the parity, we quantify parity asymmetry in term of the Wigner-Yanase skew information, and reveal some intrinsic complementary relations between the Wigner function and the Wigner-Yanase skew information. The results can be extended to a rather general setup. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[11875317] ; National Natural Science Foundation of China[61833010]
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000632990900010
内容类型	期刊论文
源URL	[http://ir.amss.ac.cn/handle/2S8OKBNM/58342]
专题	应用数学研究所
通讯作者	Luo, Shunlong
作者单位	1.Peking Univ, Frontiers Sci Ctr Nanooptoelect, Sch Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China 4.Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yue,Luo, Shunlong. Wigner function, Wigner-Yanase skew information, and parity asymmetry[J]. PHYSICS LETTERS A,2021,395:11.
APA	Zhang, Yue,&Luo, Shunlong.(2021).Wigner function, Wigner-Yanase skew information, and parity asymmetry.PHYSICS LETTERS A,395,11.
MLA	Zhang, Yue,et al."Wigner function, Wigner-Yanase skew information, and parity asymmetry".PHYSICS LETTERS A 395(2021):11.