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zero-energy interface states assisting fast and robust quantum state transfer

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

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