題　目：Quantum secret sharing between multiparty and multiparty

主講人：高亭 教授（河北師范大學）

時　間：5月25日（周三）13：30-15：30

地　點：信息工程學院 350室

報告內容：

?? Secret sharing is a powerful technology in computer science, which enables secure and robust communication in information networks, such as the internet, telecommunication systems and distributed computers. The security of these networks can be enhanced using quantum resources to protect the information. Such schemes have been termed quantum secret sharing. In this talk I will present some of our quantum secret sharing schemes between an m-party group and an n-party group. The secret message shared by all members of group 1 is shared by all members of group 2 in such a way that no subset of each group is efficient to read the secret message, but the entire set not only group 1 but also group 2 is.Besides, ????????I will also present some of our quantum secure direct communication schemes, in which the two parties communicate important messages directly without first establishing a shared secret key to encrypt them and the message is deterministically sent through the quantum channel, but can be read only after the transmission of an additional piece of classical information for each qubit.

主講人簡介：

??? 高亭，博士，二級教授，博士生導師，河北省有突出貢獻的中青年專家，享受國務院政府特殊津貼專家，河北省省管優秀專家。2008年獲河北省自然科學一等獎（排名第一）。獲中國物理學會2012年度“最有影響論文獎”一等獎（第一完成人）。從事量子信息與量子計算研究，已在Physical Review Letters等期刊上發表SCI論文40篇，SCI 他引＞860次。一篇被評為英國物理學會17篇最佳優秀論文之一。主持國家自然科學基金三項、教育部科學技術研究重點項目一項、河北省自然科學基金四項。作為客座教授或訪問學者分別在美國俄勒岡大學，加拿大多倫多大學，德國馬普量子光學所訪學一年。

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歡迎廣大師生參加。