2023-05-20 信息来源:理论物理研究所报告厅
举办单位:理论物理研究所
负责人姓名:陈立
电话:7018709
活动主题:
zero-energy interface states assisting fast and robust quantum state transfer
形式:线下学术报告
活动内容摘要:
quantum state transfer (qst) is the basic task of quantum information processing.
however, due to the inevitable decoherence of quantum state and device imperfections, the degree a quantum state can be transferred with good fidelity will be limited, which induces a trade-off between the transfer speed, distance, and robustness, as increasing one results in a decrease of the others and vice versa. in this work, we propose a fast, robust, and long-distance qst protocol via a splicing su-schrieffer-heeger (ssh) chain. it is found that the existence of zero-energy interface state (ifs) not only can improve the speed of qst but also can realize long-distance qst. the qst protocol assisted by zero-energy ifs is quite robust to disorder and environment, and also outperforms the single-ssh-chain protocol.
主讲人基本情况:
钟宏华,教授、博士生导师,2011年6月毕业于湖南师范大学理论物理专业,获理学博士学位,2012年4月至2017年8月分别在中山大学物理学、光学工程博士后流动站从事博士后研究。主要研究量子物理及其应用,已发表sci论文50余篇,其中phys. rev. a/b/l/r 17 篇,论文引用1000余次,引用超过100次的论文3篇。1篇论文被录入英国物理学会出版社精选论文,1篇论文获评2014年英国物理学会出版社高质量论文奖。主持完成国家级、省部级项目10余项。
听众范围:物理学科师生
举办时间:2023-05-20
举办地点:理论物理研究所报告厅
报告类型:理科类