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清华物理系量子信息研究的新进展
  • ISSN号：0379-4148
  • 期刊名称：《物理》
  • 时间：0
  • 分类：O413.1[理学—理论物理;理学—物理] TP301.6[自动化与计算机技术—计算机系统结构;自动化与计算机技术—计算机科学与技术]
  • 作者机构：[1]清华大学物理系,北京 100084
  • 相关基金：国家重点基础研究发展计划（批准号：001CB309308）、国家自然科学基金（批准号：10325521,60433050）和教育部博士点基金资助项目
作者： 龙桂鲁[1]
关键词： 量子搜索算法, 核磁共振量子计算, 分布式量子通讯, quantum search algorithm, NMR quantum computing, distributed quantum communication
中文摘要：

在清华大学物理系成立60周年之际,我们对近年来清华大学物理系量子信息研究的主要进展情况作一介绍,包括量子搜索算法研究,核磁共振量子计算的实验研究,量子通讯的理论与实验研究.在量子搜索算法研究方面,我们提出了量子搜索算法的相位匹配,纠正了当时的一种错误观点,并且提出了一种成功率为100%的量子搜索算法,改进了Grover算法;在核磁共振量子计算实验方面,我们实现了2到7个量子比特的多种量子算法的实验演示;在量子通讯方面,我们提出了分布式传输的量子通讯的思想,应用于量子密钥分配、量子秘密共享、量子直接安全通讯等方面,构造了多个量子通讯的理论方案.在实验室,我们实现了2米距离的空间量子密码通讯的演示实验.

英文摘要：

At the occasion of the 60 anniversary of the department, we give a brief introduction of the recent progress on quantum information research over the last few years, including quantum search algorithm, nuclear magnetic resonnace quantum computing experiment, quantum communication theory and experiment. In quan- tum algorithm study, we put forward the concept of phase matching in quantum searching, corrected a mistake at that time, and furthermore we constructed a quantum search algorithm with 100% successful rate which improves the Grover algorithm. In NMR quantum computing, we have demonstrated several quantum algorithms u- sing 2 to 7 qubits NMR systems. In quantum communication, we have proposed the idea of distributed quantum communication and applied the idea to quantum key distribution, quantum secret sharing and quantum secure direct communication. We have constructed dozens of quantum communication protocols based on this idea. We have demonstrated quantum communication over a 2m distance in free space in laboratory.

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期刊信息
  • 《物理》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院物理研究所
  • 主编：朱星
  • 地址：北京603信箱
  • 邮编：100190
  • 邮箱：physics@aphy.iphy.ac.cn
  • 电话：010-82649470 82649266
  • 国际标准刊号：ISSN：0379-4148
  • 国内统一刊号：ISSN：11-1957/O4
  • 邮发代号:2-805
  • 获奖情况:
  • 2002年中国科协优秀期刊三等奖,2000年度中科院优秀期刊一等奖,2001年入选“中国期刊方阵”,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:8902