Three-body correlation functions and recombination rates for bosons in three dimensions and one dimension Journal Article


Author(s): Haller, Elmar; Rabie, Mahmoud G; Mark, Manfred J; Danzl, Johannes G; Hart, Russell A; Lauber, Katharina; Pupillo, Guido; Nägerl, Hanns C
Article Title: Three-body correlation functions and recombination rates for bosons in three dimensions and one dimension
Affiliation
Abstract: We investigate local three-body correlations for bosonic particles in three dimensions and one dimension 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.
Keywords: Cesium; Orders of magnitude; Atomic Physics; Interaction strength; Bosonic particles; Gas parameters; Lieb-Liniger model; One dimension; Recombination rate; Theoretical prediction; Three dimensions; Three-body correlations; Three-body recombination; Tonks-Girardeau Regime; Ultracold gas
Journal Title: Physical Review Letters
Volume: 107
Issue 23
ISSN: 1079-7114
Publisher: American Physical Society  
Date Published: 2011-12-02
URL:
DOI: 10.1103/PhysRevLett.107.230404
Notes: We thank R. Grimm for generous support. We gratefully acknowledge funding by the Austrian Science Fund (FWF) within Project No. I153-N16 and within the framework of the European Science Foundation (ESF) EuroQUASAR collective research project QuDeGPM. G. P. acknowledges funding from the EU through NAME-QUAM and AQUTE.
Open access: yes (repository)