Three-body correlation functions and recombination rates for bosons in three and one dimensions
Abstract
We investigate local three-body correlations for bosonic particles in three and one dimensions as a function of the interaction strength. The three-body correlation function g(3) is determined by measuring the three-body recombination rate in an ultracold gas of Cs atoms. In three dimensions, we measure the dependence of g(3) on the gas parameter in a BEC, finding good agreement with the theoretical prediction accounting for beyond-mean-field effects. In one dimension, we observe a reduction of g(3) by several orders of magnitude upon increasing interactions from the weakly interacting BEC to the strongly interacting Tonks-Girardeau regime, in good agreement with predictions from the Lieb-Liniger model for all strengths of interaction.
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Cite
@article{arxiv.1107.4516,
title = {Three-body correlation functions and recombination rates for bosons in three and one dimensions},
author = {Elmar Haller and Mohamed Rabie and Manfred J. Mark and Johann G. Danzl and Russell Hart and Katharina Lauber and Guido Pupillo and Hanns-Christoph Nägerl},
journal= {arXiv preprint arXiv:1107.4516},
year = {2011}
}
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5 figures