Quantum homodyne tomography of a two-photon fock state

被引：175

作者：

Ourjoumtsev, Alexei ^{[1
]}

Tualle-Brouri, Rosa ^{[1
]}

Grangier, Philippe ^{[1
]}

机构：

[1] CNRS, UMR 8501, Lab Charles Fabry, Inst Opt, F-91403 Orsay, France

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.96.213601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a continuous-variable experimental analysis of a two-photon Fock state of free-propagating light. This state is obtained from a pulsed nondegenerate parametric amplifier, which produces two intensity-correlated twin beams. Counting two photons in one beam projects the other beam in the desired two-photon Fock state, which is analyzed by using a pulsed homodyne detection. The Wigner function of the measured state is clearly negative. We developed a detailed analytic model which allows a fast and efficient analysis of the experimental results.

引用

页数：4

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