东南大学学报（自然科学版）Issue(4)：708-711,4.DOI:10.3969/j.issn.1001-0505.2014.04.005
基于六量子态的高容量量子秘密共享方案
High-capacity quantum secret sharing scheme based on six states
摘要
Abstract
To improve the qubit capacity of quantum secret sharing ( QSS) schemes between one and many parties, a novel QSS scheme based on six states is proposed.In this scheme, the sender pre-pares a photon sequence, implements unitary operations according to the secret to be shared, and then performs random unitary operations before sending it to receivers.Afterwards, the receivers perform random unitary operations on the photon sequence in turn and the last one sends it back to the sender.The sender measures the photons by using correct measuring bases and broadcasts a piece of information related with the results.Then, the receivers acquire the shared secret based on the in-formation and their own unitary operations.The theoretical analysis results show that when there are n receivers, the qubit capacity of the proposed scheme is 1 while that of similar existed schemes is 1/n.So the former has a higher qubit capacity and saves quantum resource.In particular, in the pro-posed scheme, the sender performs the measurement while the receivers only need to perform unitary operations;thus, it has a low requirement for receivers'equipment.Therefore, it is extremely suit-able to the situation that the sender has much better equipment than receivers.关键词
量子秘密共享/容量/安全性/量子保密通信Key words
quantum secret sharing/capacity/security/quantum secure communication分类
信息技术与安全科学引用本文复制引用
许娟,陈汉武,刘志昊,袁家斌..基于六量子态的高容量量子秘密共享方案[J].东南大学学报（自然科学版）,2014,(4):708-711,4.基金项目
国家自然科学基金资助项目（61103235，61170321）、中国博士后科学基金资助项目（2013M531353）、江苏省自然科学基金资助项目（ BK20140823）． （）
