Three-qubit海森堡XYZ各向异性自旋链系统QMA熵不确定度的量子调控
Quantum regulation of QMA entropy uncertainty in three-qubit Heisenberg XYZ anisotropic spin chain system
刘科洋 1周清平2
作者信息
- 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
- 折叠
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(Quantum memory assisted,QMA)熵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熵不确定度及其下限,被测系统与存储系统之间的量子纠缠与QMA熵不确定度及其下限呈类反相关.
Abstract
In this paper,the regulation behavior of various parameters and applied magnetic field of the three-qubit Heisenberg XYZ anisotropic spin chain system on Quantum memory assisted(QMA)entropy uncertainty and its lower bound,and the influence on the quantum entanglement between the measured system and the memory system are studied.The results show that increasing the Dzyaloshinski-Moriya(DM)interaction strength,reduc-ing the system temperature,and increasing the magnetic field strength in the positive Z direction can improve the entanglement between the measured system and the memory system,and reduce QMA entropy uncertainty and its lower bound,the quantum entanglement between measured system and the memory system is inversely correlated with the QMA entropy uncertainty and its lower bound.
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Key words
Three-qubit Heisenberg XYZ anisotropic spin chain/QMA entropy uncertainty/DM interaction/Squared entanglement negativity引用本文复制引用
基金项目
国家自然科学基金(12064012)
国家自然科学基金(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)
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据