{ "id": "1104.5710", "version": "v3", "published": "2011-04-29T19:53:27.000Z", "updated": "2011-11-24T19:52:55.000Z", "title": "Anomalous Fisher-like zeros for the canonical partition function of noninteracting fermions", "authors": [ "R. K. Bhaduri", "A. MacDonald", "W. van Dijk" ], "comment": "5 pages and 5 figures", "journal": "EPL, 96 (2011) 56003", "doi": "10.1209/0295-5075/96/56003", "categories": [ "cond-mat.stat-mech", "cond-mat.quant-gas" ], "abstract": "Noninteracting fermions, placed in a system with a continuous density of states, may have zeros in the $N$-fermion canonical partition function on the positive real $\\beta$ axis (or very close to it), even for a small number of particles. This results in a singular free energy, and instability in other thermal properties of the system. In the context of trapped fermions in a harmonic oscillator, these zeros are shown to be unphysical. By contrast, similar bosonic calculations with continuous density of states yield sensible results.Noninteracting fermions, placed in a system with a continuous density of states yield sensible results.", "revisions": [ { "version": "v3", "updated": "2011-11-24T19:52:55.000Z" } ], "analyses": { "keywords": [ "noninteracting fermions", "anomalous fisher-like zeros", "states yield sensible results", "continuous density", "fermion canonical partition function" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1104.5710B" } } }