{ "id": "cond-mat/0208108", "version": "v1", "published": "2002-08-06T12:05:40.000Z", "updated": "2002-08-06T12:05:40.000Z", "title": "Ionization rates in a Bose-Einstein condensate of metastable Helium", "authors": [ "O. Sirjean", "S. Seidelin", "J. Viana Gomes", "D. Boiron", "C. I. Westbrook", "A. Aspect", "G. V. Shlyapnikov" ], "comment": "4 pages, 3 figures", "doi": "10.1103/PhysRevLett.89.220406", "categories": [ "cond-mat.stat-mech", "physics.atom-ph" ], "abstract": "We have studied ionizing collisions in a BEC of He*. Measurements of the ion production rate combined with measurements of the density and number of atoms for the same sample allow us to estimate both the 2 and 3-body contributions to this rate. A comparison with the decay of the number of condensed atoms in our magnetic trap, in the presence of an rf-shield, indicates that ionizing collisions are largely or wholly responsible for the loss. Quantum depletion makes a substantial correction to the 3-body rate constant.", "revisions": [ { "version": "v1", "updated": "2002-08-06T12:05:40.000Z" } ], "analyses": { "keywords": [ "bose-einstein condensate", "ionization rates", "metastable helium", "ionizing collisions", "ion production rate" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }