Assisted Cloning and Orthogonal Complementing of an Arbitrary Unknown Two-Qubit Entangled State

Based on A.K. Pati＇s original idea [Phys. Rev. A 61 （2000） 022308] on single-qubit-state-assisted clone, very recently Zhan has proposed two assisted quantum cloning protocols of a special class of unknown two-qubit entangled states [Phys. Lett. A 336 （2005） 317]. In this paper we further generalize...

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Bibliographic Details
Published in:Communications in theoretical physics 2006-11, Vol.46 (5), p.849-852
Main Authors: Ming, Fang, Yi-Min, Liu, Jun, Liu, Shou-Hua, Shi, Zhan-Jun, Zhang
Format: Article
Language:English
Subjects:
投影测量
理论物理
纠缠态
量子系化
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Summary:Based on A.K. Pati＇s original idea [Phys. Rev. A 61 （2000） 022308] on single-qubit-state-assisted clone, very recently Zhan has proposed two assisted quantum cloning protocols of a special class of unknown two-qubit entangled states [Phys. Lett. A 336 （2005） 317]. In this paper we further generalize Zhan＇s protocols such that an arbitrary unknown two-qubit entangled state can be treated.
ISSN:0253-6102
DOI:10.1088/0253-6102/46/5/016