Coherence-enhanced imaging of a degenerate Bose gas
Other Condensed Matter
2015-06-25 v1
Abstract
We present coherence-enhanced imaging, an in situ technique that uses Raman superradiance to probe the spatial coherence properties of an ultracold gas. Applying this method, we obtain a spatially resolved measurement of the condensate number and more generally, of the first-order spatial correlation function in a gas of Rb atoms. We observe the enhanced decay of propagating spin gratings in high density regions of a Bose condensate, a decay we ascribe to collective, non-linear atom-atom scattering. Further, we directly observe spatial inhomogeneities that arise generally in the course of extended sample superradiance.
Keywords
Cite
@article{arxiv.cond-mat/0609007,
title = {Coherence-enhanced imaging of a degenerate Bose gas},
author = {L. E. Sadler and J. M. Higbie and S. R. Leslie and M. Vengalattore and D. M. Stamper-Kurn},
journal= {arXiv preprint arXiv:cond-mat/0609007},
year = {2015}
}
Comments
4 pages, 4 figures