The 2nd order coherence of superradiance from a Bose--Einstein condensate
Quantum Physics
2015-06-18 v2 Quantum Gases
Atomic Physics
Abstract
We have measured the 2-particle correlation function of atoms from a Bose--Einstein condensate participating in a superradiance process, which directly reflects the 2nd 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.
Keywords
Cite
@article{arxiv.1312.6772,
title = {The 2nd order coherence of superradiance from a Bose--Einstein condensate},
author = {Raphael Lopes and Almazbek Imanaliev and Marie Bonneau and Josselin Ruaudel and Marc Cheneau and Denis Boiron and Christoph I Westbrook},
journal= {arXiv preprint arXiv:1312.6772},
year = {2015}
}