量子纠缠对单离子量子电池性能的影响  

The influence of quantum entanglement on the performance of single-ion quantum battery

作　　者：李月 杨万里 管桦 LI Yue;YANG Wanli;GUAN Hua(Innovation Academy for Precision Measurement Science and Technology,CAS,Wuhan 430071,China)

机构地区：[1]中国科学院精密测量科学与技术创新研究院,湖北武汉430071

出　　处：《中国测试》2024年第12期45-49,124,共6页China Measurement & Test

基　　金：国家自然科学基金(11934014);中国科学院项目(YSBR-085,YSBR-055);湖北省自然科学基金(2022CFA013)。

摘　　要：文章基于钙离子阱体系研究量子纠缠效应对单离子量子电池性能的具体影响。通过对冯纽曼熵、储存能量以及可提取功的数值模拟,分析并比较存在初始纠缠以及初始无纠缠的状态下,初始纠缠度对单离子量子电池储存能量以及可提取功的影响。研究发现量子电池的最大储存能量及最大可提取功都是随着初始纠缠度的增加而增加。该理论研究为实现离子量子电池,并使用纠缠资源提高其性能提供了新的思路。This article investigated the specific effects of quantum entanglement on the performance of singleion quantum batteries based on a trapped calcium-ion system.The effects of initial entanglement degree on the energy storage and extractable work of a single-ion quantum battery in the presence and absence of initial entanglement are analyzed and compared through numerical simulations of von Neumann entropy,stored energy,and extractable work.The results show that the maximum stored energy and maximum extractable work of quantum batteries increase with the increase of initial entanglement degree.This theoretical work provides new ideas for realizing ion-based quantum batteries and improving their performance using the resources of entanglement.

关 键 词：量子电池 纠缠度 可提取功 离子阱 

分 类 号：TB9[一般工业技术—计量学]