{ "id": "cond-mat/0509498", "version": "v1", "published": "2005-09-19T15:55:43.000Z", "updated": "2005-09-19T15:55:43.000Z", "title": "Bose-Einstein condensation of trapped atoms with dipole interactions", "authors": [ "Kwangsik Nho", "D. P. Landau" ], "journal": "Phys. Rev. A {\\bf 72}, 023615 (2005)", "doi": "10.1103/PhysRevA.72.023615", "categories": [ "cond-mat.stat-mech" ], "abstract": "The path integral Monte Carlo method is used to simulate dilute trapped Bose gases and to investigate the equilibrium properties at finite temperatures. The quantum particles have a long-range dipole-dipole interaction and a short-range s-wave interaction. Using an anisotropic pseudopotential for the long-range dipolar interaction and a hard-sphere potential for the short-range s-wave interaction, we calculate the energetics and structural properties as a function of temperature and the number of particles. Also, in order to determine the effects of dipole-dipole forces and the influence of the trapping field on the dipolar condensate, we use two cylindrically symmetric harmonic confinements (a cigar-shaped trap and a disk-shaped trap). We find that the net effect of dipole-dipole interactions is governed by the trapping geometry. For a cigar-shaped trap, the net contribution of dipolar interactions is attractive and the shrinking of the density profiles is observed. For a disk-shaped trap, the net effect of long-range dipolar forces is repulsive and the density profiles expand.", "revisions": [ { "version": "v1", "updated": "2005-09-19T15:55:43.000Z" } ], "analyses": { "keywords": [ "bose-einstein condensation", "dipole interactions", "trapped atoms", "short-range s-wave interaction", "path integral monte carlo method" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. A" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }