Second-order coherence of superradiance from a Bose-Einstein condensate

被引：8

作者：

Lopes, R. ^{[1
]}

Imanaliev, A. ^{[1
]}

Bonneau, M. ^{[1
]}

Ruaudel, J. ^{[1
]}

Cheneau, M. ^{[1
]}

Boiron, D. ^{[1
]}

Westbrook, C. I. ^{[1
]}

机构：

[1] Univ Paris 11, CNRS, Inst Opt, Lab Charles Fabry, F-91127 Palaiseau, France

来源：

PHYSICAL REVIEW A | 2014年 / 90卷 / 01期

关键词：

SPONTANEOUS EMISSION; RAYLEIGH-SCATTERING; SUPER-RADIANCE; MATTER WAVES; AMPLIFICATION; STATISTICS; LASER; PULSES; PHOTON; LIGHT;

D O I：

10.1103/PhysRevA.90.013615

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have measured the two-particle correlation function of atoms from a Bose-Einstein condensate participating in a superradiance process, which directly reflects the second-order coherence of the emitted light. We compare this correlation function with that of atoms undergoing stimulated emission. Whereas the stimulated process produces correlations resembling those of a coherent state, we find that superradiance, even in the presence of strong gain, shows a correlation function close to that of a thermal state, just as for ordinary spontaneous emission.

引用

页数：5

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