Fault tolerant quantum secret sharing against collective-amplitude-damping noise  

作　　者：YANG YuGuang CHAI HaiPing WANG Yuan TENG YiWei WEN QiaoYan 

机构地区：[1]College of Computer Science and Technology, Beijing University of Technology, Beijing 100124, China [2]State Key Laboratory of Integrated Services Network, Xidian University, Xi'an 710071, China [3]State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications Beijing 100876, China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2011年第9期1619-1624,共6页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National High Technology Research and Development Program of China (Grant No. 2009AA01Z441);the National Basic Research Program of China (Grant No. 2007CB311100);the National Natural Science Foundation of China (Grant Nos. 60873191,60821001 and 61003290);the Specialized Research Fund for the Doctoral Program of Higher Education (Grant Nos. 20091103120014 and 2009000-5110010);Beijing Natural Science Foundation (Grant Nos. 1093015 and1102004);the ISN Open Foundation

摘　　要：We present a quantum secret sharing protocol against collective-amplitude-damping noise. Each logical qubit is encoded in two qubit noiseless states. So it can function over such a noisy channel. The two agents encode their messages on each logical qubit only by performing a permutation operation on two physical qubits. Although each logical qubit received by each agent only carries a bit of information, the boss Alice can read out her agents' information by discriminating two orthogonal states by performing single-qubit measurements assisted by local operation and classical communication (LOCC).We present a quantum secret sharing protocol against collective-amplitude-damping noise. Each logical qubit is encoded in two qubit noiseless states. So it can function over such a noisy channel. The two agents encode their messages on each logical qubit only by performing a permutation operation on two physical qubits. Although each logical qubit received by each agent only carries a bit of information, the boss Alice can read out her agents＇ information by discriminating two orthogonal states by performing single-qubit measurements assisted by local operation and classical communication （LOCC）.

关 键 词：quantum secret sharing fault tolerant collective noise amplitude damping 

分 类 号：TP38[自动化与计算机技术—计算机系统结构] TN929.1[自动化与计算机技术—计算机科学与技术]