摘要
通过对五粒子团簇态新应用的研究,提出了一个经济和简单的二粒子任意态的可控隐形传态方案.在这个方案中,发送者(Alice)、控制者(Charlie)和接收者(Bob)共享一个五粒子团簇态,发送者只需要执行Bell基测量,而控制者也仅需要执行单粒子投影测量.接受者根据发送者和控制者的测量结果,对自己拥有的粒子做适当的幺正变换,就可以重建发送者的二粒子任意态.这个可控隐形传态方案是决定性的,成功的概率为100%.与使用相同的量子信道进行二粒子任意态的可控隐形传送方案相比,不需要执行多粒子的联合测量,从而使得这个方案更加简单.
A new application of the five-qubit cluster state is investigated for economic and simple controlled teleportation of an arbitrary two-qubit state.In this scheme,a five-qubit cluster state is shared by a sender(Alice),a controller(Charlie)and a receiver(Bob),and the sender only needs to perform Bell-state measurements and the controller performs a single-qubit projective measurement.The receiver can reconstruct the arbitrary two-qubit state by performing some appropriate unitary transformations on his qubits after he knows the measured results of both the sender and the controller.This controlled teleportation scheme is deterministic,and the probability of successful controlled teleportation is 100%.In comparison with the controlled teleportation scheme using the same quantum channel,the proposed scheme do not need to make multi-particle joint measurement that makes this scheme simpler.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2010年第11期2073-2077,共5页
Acta Photonica Sinica
基金
Supported by the National Natural Science Foundation of China(60807014)
the Natural Science Foundation of Jiangxi Province,China(2009GZW0005)
the Research Foundation of State Key Laboratory of Advanced Optical Communication Systems and Networks
the Research Foundation of the Education Department of Jiangxi Province,China(GJJ09153)
关键词
可控量子隐形传态
团簇态
BELL基测量
Controlled teleportation
Cluster state
Bell-State Measurements(BSM)