中国物理B ›› 2008, Vol. 17 ›› Issue (3): 771-777.doi: 10.1088/1674-1056/17/3/006
朱甫臣1, 杜建忠2, 陈秀波3, 温巧燕3
Chen Xiu-Bo(陈秀波)a)b)†, Du Jian-Zhong(杜建忠)c), Wen Qiao-Yan(温巧燕)a)b), and Zhu Fu-Chen(朱甫臣)d)
摘要: Utilizing the generalized measurement described by positive operator-valued measure, this paper comes up with a protocol for teleportation of an unknown multi-particle entangled (GHZ) state with a certain probability. The feature of the present protocol is to weaken requirement for the quantum channel initially shared by sender and receiver. All unitary transformations performed by receiver are summarized into a formula. On the other hand, this paper explicitly constructs the efficient quantum circuits for implementing the proposed teleportation by means of universal quantum logic operations in quantum computation.
中图分类号: (Entanglement and quantum nonlocality)