{ "id": "hep-ph/9409413", "version": "v2", "published": "1994-09-26T14:47:46.000Z", "updated": "1994-10-13T11:22:31.000Z", "title": "Phase Structure of Four-Fermion Theories at Finite Temperature and Chemical Potential in Arbitrary Dimensions", "authors": [ "T. Inagaki", "T. Kouno", "T. Muta" ], "comment": "32 pages, uses LaTeX, here.sty(attached), eepic.sty, HUPD-9402 (some misprints corrected)", "journal": "Int.J.Mod.Phys. A10 (1995) 2241-2268", "doi": "10.1142/S0217751X95001091", "categories": [ "hep-ph", "hep-th" ], "abstract": "The phase structure of four-fermion theories is thoroughly investigated with varying temperature and chemical potential for arbitrary space-time dimensions $(2 \\leq D < 4)$ by using the 1/N expansion method. It is shown that the chiral symmetry is restored in the theory under consideration for sufficiently high temperature and/or chemical potential. The critical line dividing the symmetric and broken phase is given explicitly. It is found that for space-time dimension $2 \\leq D < 3$ both the first-order and second-order phase transition occur depending on the value of temperature and chemical potential while for $3 \\leq D < 4$ only the second-order phase transition exists.", "revisions": [ { "version": "v2", "updated": "1994-10-13T11:22:31.000Z" } ], "analyses": { "keywords": [ "chemical potential", "phase structure", "four-fermion theories", "finite temperature", "arbitrary dimensions" ], "tags": [ "journal article" ], "note": { "typesetting": "LaTeX", "pages": 32, "language": "en", "license": "arXiv", "status": "editable", "inspire": 377322 } } }