Generalized quantum telecloning

被引:21
|
作者
Gordon, G. [1 ]
Rigolin, G.
机构
[1] Weizmann Inst Sci, Dept Phys Chem, IL-76100 Rehovot, Israel
[2] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil
来源
EUROPEAN PHYSICAL JOURNAL D | 2007年 / 45卷 / 02期
关键词
D O I
10.1140/epjd/e2007-00256-8
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present a generalized telecloning (GTC) protocol where the quantum channel is non-optimally entangled and we study how the fidelity of the telecloned states depends on the entanglement of the channel. We show that one can increase the fidelity of the telecloned states, achieving the optimal value in some situations, by properly choosing the measurement basis at Alice's, albeit turning the protocol to a probabilistic one. We also show how one can convert the GTC protocol to the teleportation protocol via proper unitary operations.
引用
收藏
页码:347 / 353
页数:7
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