Spatial quantum signatures in parametric down-conversion

被引:47
|
作者
Marzoli, I [1 ]
Gatti, A [1 ]
Lugiato, LA [1 ]
机构
[1] UNIV MILAN,DIPARTIMENTO FIS,IST NAZL FIS MAT,I-20133 MILAN,ITALY
关键词
D O I
10.1103/PhysRevLett.78.2092
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We calculate the normal and time ordered spatial intensity correlation function of the signal field in a degenerate parametric oscillator below threshold, with spherical mirrors. In the far field, it exhibits a two peak structure, and the correlation is maximal between points opposite each other with respect to the axis of the system. This feature provides direct spatial evidence of the twin photon emission, and identifies states of the radiated field with local nonclassical squeezing properties.
引用
收藏
页码:2092 / 2095
页数:4
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