{ "id": "cond-mat/0508431", "version": "v2", "published": "2005-08-18T16:26:52.000Z", "updated": "2006-01-31T15:33:36.000Z", "title": "Quantum Monte Carlo simulation in the canonical ensemble at finite temperature", "authors": [ "Kris Van Houcke", "Stefan Rombouts", "Lode Pollet" ], "comment": "11 pages, 8 figures", "journal": "Phys.Rev. E73 (2006) 056703", "doi": "10.1103/PhysRevE.73.056703", "categories": [ "cond-mat.stat-mech", "nucl-th" ], "abstract": "A quantum Monte Carlo method with non-local update scheme is presented. The method is based on a path-integral decomposition and a worm operator which is local in imaginary time. It generates states with a fixed number of particles and respects other exact symmetries. Observables like the equal-time Green's function can be evaluated in an efficient way. To demonstrate the versatility of the method, results for the one-dimensional Bose-Hubbard model and a nuclear pairing model are presented. Within the context of the Bose-Hubbard model the efficiency of the algorithm is discussed.", "revisions": [ { "version": "v2", "updated": "2006-01-31T15:33:36.000Z" } ], "analyses": { "subjects": [ "02.70.Ss", "71.10.Li", "05.10.Ln", "21.60.Ka" ], "keywords": [ "quantum monte carlo simulation", "finite temperature", "canonical ensemble", "quantum monte carlo method", "non-local update scheme" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. E" }, "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable", "inspire": 690270 } } }