Spin nonclassicality and quantum phase transition in the XY spin model

doi:10.1088/1402-4896/abb910

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	Spin nonclassicality and quantum phase transition in the XY spin model
	Dai,Hao 1,2; Fu,Shuangshuang 3; Luo,Shunlong1,2
	2020-09-25
发表期刊	Physica Scripta
ISSN	0031-8949
卷号	95 期号:10
摘要	Abstract We study the behaviors of spin nonclassicality in critical systems of spin chains, with the spin nonclassicality measured by an informational quantifier based on the Wigner-Yanase skew information. For the XY spin chain with three-spin interaction, we evaluate both the single-spin and the nearest neighbour two-spin nonclassicalities, as well as their first-order derivatives. We demonstrate the effectiveness of these quantities of spin nonclassicality in revealing the critical points for quantum phase transition. The merits of the present approach to detecting quantum phase transition by spin nonclassicality lie in its easy computation, informational content and metrological significance.
关键词	quantum phase transition spin nonclassicality Wigner-Yanase skew information
DOI	10.1088/1402-4896/abb910
语种	英语
WOS记录号	IOP:0031-8949-95-10-abb910
出版者	IOP Publishing
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/52118
专题	应用数学研究所
通讯作者	Fu,Shuangshuang
作者单位	1.Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China 2.School of Mathematical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, People’s Republic of China 3.School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
推荐引用方式 GB/T 7714	Dai,Hao,Fu,Shuangshuang,Luo,Shunlong. Spin nonclassicality and quantum phase transition in the XY spin model[J]. Physica Scripta,2020,95(10).
APA	Dai,Hao,Fu,Shuangshuang,&Luo,Shunlong.(2020).Spin nonclassicality and quantum phase transition in the XY spin model.Physica Scripta,95(10).
MLA	Dai,Hao,et al."Spin nonclassicality and quantum phase transition in the XY spin model".Physica Scripta 95.10(2020).