{ "id": "cond-mat/0701420", "version": "v1", "published": "2007-01-17T19:00:59.000Z", "updated": "2007-01-17T19:00:59.000Z", "title": "Visibility of a Bose-condensed gas released from an optical lattice at finite temperatures", "authors": [ "Fabrice Gerbier", "Simon Foelling", "Artur Widera", "Immanuel Bloch" ], "comment": "Response to cond-mat/0609685; 5pages, 2 figures", "categories": [ "cond-mat.stat-mech" ], "abstract": "In response to a recent manuscript [cond-mat/0609685] on the analysis of interference patterns produced by ultracold atoms released from an optical lattice, we point out that in the presence of a Bose-Einstein condensate the interference pattern can be strongly modified by interaction effects and the presence of a harmonic trap superimposed on the lattice potential. Our results show that the visibility of the interference pattern is significant only if a sizeable condensate fraction is present in the trap.", "revisions": [ { "version": "v1", "updated": "2007-01-17T19:00:59.000Z" } ], "analyses": { "keywords": [ "optical lattice", "finite temperatures", "bose-condensed gas", "visibility", "bose-einstein condensate" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007cond.mat..1420G" } } }