Approximate Quantum State Sharings via Pair of Private Quantum Channels  

作　　者：Dong Pyo Chi Kabgyun Jeong 

机构地区：[1]Department of Mathematical Sciences, Seoul Na-tional University, Seoul, Korea [2]School of Computational Sciences, Korea Institute for Advanced Study, Seoul, Korea

出　　处：《Journal of Quantum Information Science》2014年第1期64-70,共7页量子信息科学期刊（英文）

摘　　要：We investigate a quantum communication protocol, of so-called approximate quantum state sharing (AQSS), that protocol is basically based on pair of private quantum channels. In this paper, we prove that the scheme is secure against any external and internal attacks of wiretapping in principle. Although the protocol leaks small amount of information corresponding to a security parameter , the scheme still preserves its information-theoretic security.We investigate a quantum communication protocol, of so-called approximate quantum state sharing (AQSS), that protocol is basically based on pair of private quantum channels. In this paper, we prove that the scheme is secure against any external and internal attacks of wiretapping in principle. Although the protocol leaks small amount of information corresponding to a security parameter , the scheme still preserves its information-theoretic security.

关 键 词：QUANTUM State Sharing (Approximate) PRIVATE QUANTUM Channel TRACE NORM 

分 类 号：O41[理学—理论物理]