中北大学学报（自然科学版）2026，Vol.47Issue(3)：415-420,6.DOI:10.62756/jnuc.issn.1673-3193.2024.08.0005
非强k经典态基于Tsallis相对熵的量子失谐
Quantum Discord of Non-Strong-k-Classical States Based on Tsallis Relative Entropy
摘要
Abstract
The strength of correlation of non-strongly-k-classical states in multipartite composite system was studied using Tsallis relative entropy.Firstly,based on the concept of the fully classical state in bipar-tite system,the definition of the strongly-k-classical states in multipartite quantum system was given.Sec-ondly,the quantum discord based on Tsallis relative entropy of non-strongly-k-classical states with respect to subsystem partitions was proposed,and it was proved that it satisfies the necessary physical properties.Then,it was compared with other correlation measures.Finally,the evolution problem of this correlation measure under a quantum channel was discussed.The research shows that the proposed corre-lation measure provides a tool for quantifying the strength of correlation between different subsystems in a quantum system.In addition,by evaluating quantum states through correlation measures can optimize the implementation of quantum algorithms and improve the efficiency of quantum information processing.关键词
Tsallis相对熵/k体分划/强k经典态/量子失谐/量子信道Key words
Tsallis relative entropy/k-partition/strongly-k-classical states/quantum discord/quantum channel分类
数理科学引用本文复制引用
郝利花,王银珠,程晨..非强k经典态基于Tsallis相对熵的量子失谐[J].中北大学学报（自然科学版）,2026,47(3):415-420,6.基金项目
山西省自然科学基金项目(201901D111254) （201901D111254）
