Qubit-qutrit海森堡混合自旋链系统QMA熵不确定度的量子调控  

Quantum regulation of QMA entropy uncertainty in a qubit-qutrit Heisenberg hybrid spin chain system

作　　者：刘科洋 周清平[2] 闻佳欣 刘洁 张婷 LIU Ke-Yang;ZHOU Qing-Ping;WEN Jia-Xin;LIU Jie;ZHANG Ting(College of Physics and Electromechanical Engineering,Jishou University,Jishou 416000,China;College of Computer Science and Engneering,Jishoun University,Zhangjiajie 427000,China)

机构地区：[1]吉首大学物理与机电工程学院,吉首416000 [2]吉首大学计算机科学与工程学院,张家界427000

出　　处：《原子与分子物理学报》2024年第5期111-117,共7页Journal of Atomic and Molecular Physics

基　　金：国家自然科学基金(12064012,11464015);湖南省教育厅2021年度科研项目(21B0518);吉首大学校级科研基金(Jdy21034)。

摘　　要：在qubit-qutrit海森堡混合自旋链模型中研究了量子存储支撑(Quantum memory assisted,QMA)熵不确定度的量子调控.详细分析了混合自旋链模型中的Dzyaloshinskii-Moriya(DM)相互作用、耦合强度和非均匀磁场对QMA熵不确定度的影响,对比分析了混合自旋链模型中系统参数对QMA熵不确定度和被测系统与存储系统的量子纠缠的调控作用.结果表明,通过调控非均匀磁场强度和混合自旋链系统的参数,可以提高被测系统与存储系统的量子纠缠,降低系统QMA熵不确定度及其下限.The quantum regulation of the entropy uncertainty of quantum memory assisted (QMA ) was studied in the qubit-qutrit Heisenberg hybrid spin chain model. The effects of Dzyaloshinskii-Moriya (DM ) interaction, coupling strength and inhomogeneous magnetic field on QMA entropy uncertainty in the hybrid spin chain model were analyzed in detail, and the regulatory effects of system parameters on QMA entropy uncertainty and quantum entanglement between the measured system and the memory system in the hybrid spin chain model were compared and analyzed. The results show that by adjusting the inhomogeneous magnetic field strength and the parameters of the hybrid spin chain system, the quantum entanglement between the measured system and the memory system can be improved, This can lead to lower QMA entropy uncertainty and lower bound.

关 键 词：QMA熵不确定度 Qubit-qutrit海森堡混合自旋链 DM相互作用 Negativity 

分 类 号：O64[理学—物理化学]