摘要
在单量子系统中,利用相干度量的定义及其性质,基于不同相干度量分别研究纯态和混合态的态排序,并给出C_(max),C_(v-max)与C_(r),C_(I),Cl_(1)的态排序结果.结果表明:C_(r),C_(Ι),C_(H)对纯态提供相同的态排序,该态排序结果对混合态不成立;不同于纠缠度量,2个相干度量在纯态中的序关系对任意态未必有相同结果.
By using the definition and properties of the coherence measure, we studied the state ordering of the pure state and the mixed state respectively in a single quantum system, and gave the state ordering results between C_(max),C_(v-max)and C_(r),C_(Ι),C_(l)1. The results show that C_(r),C_(Ι), and C_(H)provide the same state ordering for pure states, but this state ordering result is not formed for mixed states. Unlike entanglement measures, the order relationship between two coherence measures in a pure state may not necessarily have the same result for any state.
作者
胡晓会
玄东平
南华
HU Xiaohui;XUAN Dongping;NAN Hua(College of Science,Yanbian University,Yanji 133002,Jilin Province,China)
出处
《吉林大学学报（理学版）》
CAS
北大核心
2023年第1期143-147,共5页
Journal of Jilin University:Science Edition
基金
国家自然科学基金(批准号:11961073)。
关键词
量子相干
相干度量
态排序
quantum coherence
coherence measure
state ordering
