How to measure squeezing and entanglement of Gaussian states without homodyning -: art. no. 063601

被引：55

作者：

Fiurásek, J

Cerf, NJ

机构：

[1] Free Univ Brussels, Ecole Polytech, QUIC, B-1050 Brussels, Belgium

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

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.93.063601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose a scheme for measuring the squeezing, purity, and entanglement of Gaussian states of light that does not require homodyne detection. The suggested setup needs only beam splitters and single-photon detectors. Two-mode entanglement can be detected from coincidences between photodetectors placed on the two beams.

引用

收藏

页码：063601 / 1

页数：4

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