An efficient scheme for multi-party quantum state sharing via non-maximally entangled states

• 来源期刊: 科学通报(英文版)
• 学科: 工学
• 年，卷（期）: 2012,（10）
• 页码范围: 1089-1094
• 页数: 6页
• 分类号: O413|TN918
• 语种: 中文

摘要

We present a new scheme for investigating the usefulness of non-maximally entangled states for multi-party quantum state shar-ing in a simple and elegant manner.In our scheme,the sender,Alice shares n various probabilistic channels composed of non-maximally entangled states with n agents in a network.Our protocol involves only Bell-basis measurements,single qubit measurements,and a two-qubit unitary transformation operated by free optional agents.Our scheme is a more convenient realiza-tion because no other multipartite joint measurements are needed.Furthermore,in our scheme various probabilistic channels lessen the requirement for quantum channels,which makes it more practical for physical implementation.