南方科技大学知识苑(SUSTech KC): Common coherence witnesses and common coherent states

题名	Common coherence witnesses and common coherent states
作者	Wang，Bang Hai 1; Ding，Zi Heng 2,3; Ma，Zhihao 2,3; Fei，Shao Ming 4,5
发表日期	2021-09-01
DOI	10.3390/e23091136
发表期刊	Entropy 影响因子和分区
EISSN	1099-4300
卷号	23 期号:9
摘要	We show the properties and characterization of coherence witnesses. We show methods for constructing coherence witnesses for an arbitrary coherent state. We investigate the problem of finding common coherence witnesses for certain class of states. We show that finitely many different witnesses W, W, · · ·, W can detect some common coherent states if and only if ∑i=1iW is still a witnesses for any nonnegative numbers t (i = 1, 2, · · ·, n). We show coherent states play the role of high-level witnesses. Thus, the common state problem is changed into the question of when different high-level witnesses (coherent states) can detect the same coherence witnesses. Moreover, we show a coherent state and its robust state have no common coherence witness and give a general way to construct optimal coherence witnesses for any comparable states.
关键词	Common coherence witnesses Common coherent states High-level witnesses
相关链接	[Scopus记录]
收录类别	SCI
语种	英语
学校署名	其他
资助项目	National Natural Science Foundation of China[62072119,61672007,12075159] ; Guangdong Basic and Applied Basic Research Foundation[2020A1515011180] ; Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology["SIQSE202005","SIQSE202001"] ; Natural Science Foundation of Shanghai[20ZR1426400] ; Beijing Natural Science Foundation[Z190005]
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000699604300001
出版者	MDPI
Scopus记录号	2-s2.0-85114264280
来源库	Scopus
引用统计	被引频次[WOS]：3
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/245639
专题	量子科学与工程研究院理学院_物理系
作者单位	1.School of Computer Science and Technology,Guangdong University of Technology,Guangzhou,510006,China 2.School of Mathematical Sciences,MOE-LSC,Shanghai Jiao Tong University,Shanghai,200240,China 3.Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China 4.School of Mathematical Sciences,Capital Normal University,Beijing,100048,China 5.Max-Planck-Institute for Mathematics in the Sciences,Leipzig,04103,Germany
推荐引用方式 GB/T 7714	Wang，Bang Hai,Ding，Zi Heng,Ma，Zhihao,et al. Common coherence witnesses and common coherent states[J]. Entropy,2021,23(9).
APA	Wang，Bang Hai,Ding，Zi Heng,Ma，Zhihao,&Fei，Shao Ming.(2021).Common coherence witnesses and common coherent states.Entropy,23(9).
MLA	Wang，Bang Hai,et al."Common coherence witnesses and common coherent states".Entropy 23.9(2021).