非马尔科夫环境中海森堡XXZ自旋链的量子相干演化特性

doi:10.3969/j.issn.1007-5461.2021.03.010

量子电子学报 ›› 2021, Vol. 38 ›› Issue (3): 341-345.doi: 10.3969/j.issn.1007-5461.2021.03.010

非马尔科夫环境中海森堡XXZ自旋链的量子相干演化特性

阿拉帕提·阿不力米提, 杨帆, 迪丽达尔·海依提江, 阿依尼沙·牙生, 白慧婷, 艾则孜姑丽·阿不都克热木, 艾合买提·阿不力孜∗

新疆师范大学物理与电子工程学院, 新疆乌鲁木齐830054

收稿日期:2020-11-17 修回日期:2020-12-28 出版日期:2021-05-28 发布日期:2021-05-28
通讯作者: E-mail: aahmad@126.com
作者简介:阿拉帕提·阿不力米提( 1995 - ), 新疆乌鲁木齐人, 研究生, 主要从事量子光学与量子信息方面的研究。E-mail: aablimit@126.com
基金资助:
Supported by Fund for Less Developed Regions of National Natural Science Foundation of China (国家自然科学基金地区科学基金, 11864042), Tianshan Outstanding Talents of Xinjiang Uyghur Autonomous Region (The Second Level Training Candidates) (自治区天山英才工程第二层次培养人选项目)

Quantum coherence evolution of Heisenberg XXZ spin chain within non-Markovian environment

Arapat Ablimit, YANG Fan, Dildar Hitjan, Aynisa Yasin, BAI Huiting, Aziza Abdukerim, Ahmad Abliz∗

School of Physics and Electronic Engineering, Xinjiang Normal University, Urumqi 830054, China

Received:2020-11-17 Revised:2020-12-28 Published:2021-05-28 Online:2021-05-28

摘要/Abstract

摘要： 运用非微扰形式的非马尔科夫量子态扩散方法, 得到了强耦合到非马尔科夫费米库的海森堡XXZ 自旋链的精确主方程, 并利用该主方程研究了环境非马尔科夫性、不同方向的耦合强度对海森堡自旋链量子相干的影响。研究结果表明: 环境非马尔科夫性会改变量子相干的恢复度以及弛豫时间, 不同方向自旋链的耦合强度也会影响量子相干强度。

关键词: 量子光学, 非马尔科夫, 量子态扩散方法, 量子相干

Abstract: Using the non-perturbative non-Markovian quantum state diffusion method, the exact master equation of the Heisenberg XXZ spin chain strongly coupled to the non-Markovian fermionic bath is obtained, and then the influence of environmental non-Markovian properties and coupling strength in different directions on the quantum coherence of Heisenberg spin chain is studied by using the master equation. Results show that the environmental non-Markovian properties can greatly change the recovery and relaxation time of the spin chain quantum coherence, and in additon, the coupling strength of the spin chains in different direction also affects the quantum coherence strength.

Key words: quantum optics, non-Markovian, quantum state diffusion method, quantum coherence

中图分类号:

O431.2

阿拉帕提·阿不力米提, 杨帆, 迪丽达尔·海依提江, 阿依尼沙·牙生, 白慧婷, 艾则孜姑丽·阿不都克热木, 艾合买提·阿不力孜∗. 非马尔科夫环境中海森堡XXZ自旋链的量子相干演化特性[J]. 量子电子学报, 2021, 38(3): 341-345.

Arapat Ablimit, YANG Fan, Dildar Hitjan, Aynisa Yasin, BAI Huiting, Aziza Abdukerim, Ahmad Abliz∗. Quantum coherence evolution of Heisenberg XXZ spin chain within non-Markovian environment[J]. Chinese Journal of Quantum Electronics, 2021, 38(3): 341-345.

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非马尔科夫环境中海森堡XXZ自旋链的量子相干演化特性

Quantum coherence evolution of Heisenberg XXZ spin chain within non-Markovian environment

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