非强k经典态基于Tsallis相对熵的量子失谐OA

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.