第41卷第6期2024年12月J.At.Mol.Phys.,2024,41:065001(8pp)Three-qubit海森堡XYZ各向异性自旋链系统QMA不确定度的量子调控原子与分子物理学报JOURNALOFATOMICANDMOLECULARPHYSICSVol.41No.6Dec.2024刘科洋，周清平2（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）摘要：本文研究了three-qubit海森堡XYZ各向异性自旋链系统各项参数和外加磁场对量子存储支撑（Quantummemoryassisted,QMA）摘不确定度及其下限的调控行为，以及对被测系统与存储系统之间量子纠缠的影响，结果表明：增大系统的Dzyaloshinski-Moriya(DM)相互作用强度、降低系统温度、增大沿Z正方向磁场强度可以提高被测系统与存储系统之间的量子纠缠,降低系统QMA摘不确定度及其下限,被测系统与存储系统之间的量子纠缠与QMA炳不确定度及其下限呈类反相关.关键词：Three-qubit海森堡XYZ各向异性自旋链；QMA熵不确定度；DM相互作用；平方负性纠缠中图分类号：065QuantumregulationofQMAentropyuncertaintyinthree-qubitHeisenbergXYZanisotropicspinchainsystem文献标识码：AD0I:10.19855/j.1000-0364.2024.065001LIUKe-Yang',ZHOUQing-Ping(1.CollegeofPhysicsandElectromechanicalEngineering,JishouUniversity,Jishou416000,China;2.CollegeofComputerScienceandEngneering,JishounUniversity,Zhangjiajie427000,China)Abstract:Inthispaper,theregulationbehaviorofvariousparametersandappliedmagneticfieldofthethree-qubitHeisenbergXYZanisotropicspinchainsystemonQuantummemoryassisted(QMA)entropyuncertaintyanditslowerbound,andtheinfluenceonthequantumentanglementbetweenthemeasuredsystemandthememorysystemarestudied.TheresultsshowthatincreasingtheDzyaloshinski-Moriya(DM)interactionstrength,reduc-ingthesystemtemperature,andincreasingthemagneticfieldstrengthinthepositiveZdirectioncanimprovetheentanglementbetweenthemeasuredsystemandthememorysystem,andreduceQMAentropyuncertaintyanditslowerbound,thequantumentanglementbetweenmeasuredsystemandthememorysystemisinverselycorelatedwiththeQMAentropyuncertaintyanditslowerbound.Keywords:Three-qubitHeisenbergXYZanisotropicspinchain;QMAentropyuncertainty;DMinteraction;Squaredentanglementnegativity耦合可以产生一个多体纠缠态，低维自旋...
