会议专题

Economical and efficient scheme for quantum information splitting via GHZ-like state and Bell states

  In this manuscript, a novel and economical scheme for quantum information splitting of an arbitrary N-qubit state (N≥ 1) is investigated.Instead of multi-qubit entangled states, the maximally entangled states, which are made up of a three-qubit GHZ-like entangled state and (N-1) sets of Bell states, are used as quantum information carrier.It is shown that the proposed quantum information splitting scheme can be faithfully realized by performing appropriate Bell state measurements (BSMs), single qubit measurements (SMs)and local unitary operations (LUOs), rather than multi-qubit entanglement or multi-particle joint measurements,which make it more convenient in the practical application than some previous schemes.Furthermore, its intrinsic efficiency for qubits approaches 100%, and the total efficiency really approaches the maximal value, which is higher than those of some previous quantum information splitting schemes.Finally, for the security of this quantum information splitting scheme, it depends on the process of the secure quantum channel by means of the decoy photons technique, we analyse the security from the views of participant attack and outside attack in details.This method of security analysis can be also utilized for security analysis of other quantum communication schemes.Thus our presented scheme is economical, feasible and secure.

Quantum Information Splitting Quantum Teleportation GHZ-like state Bell State Measurements

康双勇 张永辉 唐佩 陈秀波 杨义先

北京邮电大学计算机学院 西北大学信息学院

国内会议

第十一全国博士生学术年会——信息技术与安全专题

成都

英文

252-261

2013-10-01(万方平台首次上网日期,不代表论文的发表时间)