Entanglement concentration of continuous-variable quantum states -: art. no. 022304

被引：39

作者：

Fiurásek, J ^{[1
]}

Mista, L ^{[1
]}

Filip, R ^{[1
]}

机构：

[1] Palacky Univ, Dept Opt, Olomouc 77200, Czech Republic

来源：

PHYSICAL REVIEW A | 2003年 / 67卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.67.022304

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose two probabilistic entanglement concentration schemes for a single copy of a two-mode squeezed vacuum state. The first scheme is based on the off-resonant interaction of a Rydberg atom with the cavity field while the second setup involves the cross Kerr interaction, an auxiliary mode prepared in a strong coherent state, and homodyne detection. We show that the continuous-variable entanglement concentration allows us to improve the fidelity of teleportation of coherent states.

引用

页数：7

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