{ "id": "cond-mat/0312371", "version": "v1", "published": "2003-12-15T16:46:22.000Z", "updated": "2003-12-15T16:46:22.000Z", "title": "Bethe Ansatz calculation of the spectral gap of the asymmetric exclusion process", "authors": [ "O. Golinelli", "K. Mallick" ], "journal": "J. Phys. A: Math. Gen. 37 (2004) 3321-3331", "doi": "10.1088/0305-4470/37/10/001", "categories": [ "cond-mat.stat-mech", "cond-mat.dis-nn" ], "abstract": "We present a new derivation of the spectral gap of the totally asymmetric exclusion process on a half-filled ring of size L by using the Bethe Ansatz. We show that, in the large L limit, the Bethe equations reduce to a simple transcendental equation involving the polylogarithm, a classical special function. By solving that equation, the gap and the dynamical exponent are readily obtained. Our method can be extended to a system with an arbitrary density of particles. Keywords: ASEP, Bethe Ansatz, Dynamical Exponent, Spectral Gap.", "revisions": [ { "version": "v1", "updated": "2003-12-15T16:46:22.000Z" } ], "analyses": { "keywords": [ "spectral gap", "bethe ansatz calculation", "totally asymmetric exclusion process", "dynamical exponent", "bethe equations reduce" ], "tags": [ "journal article" ], "publication": { "journal": "Journal of Physics A Mathematical General", "year": 2004, "month": "Mar", "volume": 37, "number": 10, "pages": 3321 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2004JPhA...37.3321G" } } }