项目名称: 连续变量四用户量子秘密共享的理论及实验研究
项目编号: No.11474190
项目类型: 面上项目
立项/批准年度: 2015
项目学科: 数理科学和化学
项目作者: 贾晓军
作者单位: 山西大学
项目金额: 100万元
中文摘要: 随着量子信息研究实用化的发展,信息安全问题就尤其显得突出,也越来越受到人们的广泛关注和重视。量子秘密共享就是为了研究信息共享的安全性而被提出来的,它是保障信息安全共享的一个重要手段。到目前为止,在连续变量领域,已经成功实验实现了三用户的量子秘密共享。将量子秘密共享发展到更多用户存在某些技术挑战。我们拟利用产生的高纠缠度EPR 纠缠态光场,提高四组份束缚纠缠态和TTPC 纠缠态光场的纠缠度,并以此为基础分别实现四用户中三用户及四用户之间的(3,4)和(4,4)量子秘密共享,推动连续变量量子秘共享向更多用户发展。
中文关键词: 量子信息;量子秘密共享;连续变量
英文摘要: With the development of quantum information processing, the problem of information security become particularly prominent, and attracts more and more concern and attention. Quantum secret sharing is an important method for establishing the security network communication. Three-users continuous variable quantum secret sharing has been experimentally realized up to now. There are some technical challenges in developing quantum secret sharing network with users more than three. With the generated EPR optical entangled state of high correlation degrees, we will enhance the correlation degrees of quadra-partite bound entangled and total three-party correlation entangled states of light and realize the four-users (3, 4) as well as (4, 4) quantum secret sharing with continuous variables. This achievement will promote the development of continuous variable quantum secret sharing with more users.
英文关键词: Quantum Information;Quantum Seceret Sharing;Continuous Variables