%0 Journal Article
%T Momentum-resolved study of an array of 1D strongly phase-fluctuating Bose gases
%A Nicole Fabbri
%A David Cl¨Śment
%A Leonardo Fallani
%A Chiara Fort
%A Massimo Inguscio
%J Physics
%D 2010
%I arXiv
%R 10.1103/PhysRevA.83.031604
%X We investigate the coherence properties of an array of one-dimensional Bose gases with short-scale phase fluctuations. The momentum distribution is measured using Bragg spectroscopy and an effective coherence length of the whole ensemble is defined. In addition, we propose and demonstrate that time-of-flight absorption imaging can be used as a simple probe to directly measure the coherence-length of 1D gases in the regime where phase-fluctuations are strong. This method is suitable for future studies such as investigating the effect of disorder on the phase coherence.
%U http://arxiv.org/abs/1009.3480v2