Generalized quantum-state sharing

被引：127

作者：

Gordon, Goren

Rigolin, Gustavo ^{[1
]}

机构：

[1] Weizmann Inst Sci, Dept Chem Phys, IL-76100 Rehovot, Israel

[2] Univ Estadual Campinas, Inst Fis Gleb Wataghin, Dept Fis Mat Condensada, BR-13084971 Campinas, SP, Brazil

来源：

PHYSICAL REVIEW A | 2006年 / 73卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.73.062316

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present two quantum-state sharing protocols where the channels are not maximally entangled states. By properly choosing the measurement basis it is possible to achieve unity fidelity transfer of the state if the parties collaborate. We also show that contrary to the protocols where we have maximally entangled channels these protocols are probabilistic. We then compare the efficiency of both protocols and sketch the generalization of the protocols to N parties.

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