单量子系统中基于相干度量的态排序

吉林大学学报(理学版) ›› 2023, Vol. 61 ›› Issue (1): 143-147.

单量子系统中基于相干度量的态排序

胡晓会, 玄东平, 南华

延边大学理学院, 吉林延吉 133002

收稿日期:2021-10-28 出版日期:2023-01-26 发布日期:2023-01-26
通讯作者: 南华 E-mail:nanhua@ybu.edu.cn

State Ordering Based on Coherence Measure in Single Quantum System

HU Xiaohui, XUAN Dongping, NAN Hua

College of Science, Yanbian University, Yanji 133002, Jilin Province, China

Received:2021-10-28 Online:2023-01-26 Published:2023-01-26

摘要/Abstract

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_vmax与C_r,C_I,C_l1
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.

关键词: 量子相干, 相干度量, 态排序

Abstract: 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_vmax and C_r,C_I,C_l1 The results show that C_r,C_Ι, and C_Hprovide 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.

Key words: quantum coherence, coherence measure, state ordering

中图分类号:

O413.1

胡晓会, 玄东平, 南华. 单量子系统中基于相干度量的态排序[J]. 吉林大学学报(理学版), 2023, 61(1): 143-147.

HU Xiaohui, XUAN Dongping, NAN Hua. State Ordering Based on Coherence Measure in Single Quantum System[J]. Journal of Jilin University Science Edition, 2023, 61(1): 143-147.

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