{ "id": "hep-ph/9207246", "version": "v1", "published": "1992-07-20T11:40:27.000Z", "updated": "1992-07-20T11:40:27.000Z", "title": "Phase Structure of QED3 at Finite Temperature", "authors": [ "I. J. R. Aitchison", "N. Dorey", "M. Klein-Kreisler", "N. E. Mavromatos" ], "comment": "9 pages", "journal": "Phys.Lett. B294 (1992) 91-99", "doi": "10.1016/0370-2693(92)91645-P", "categories": [ "hep-ph", "hep-th" ], "abstract": "Dynamical symmetry breaking in three-dimensional QED with N fermion flavours is considered at finite temperature, in the large $N$ approximation. Using an approximate treatment of the Schwinger-Dyson equation for the fermion self-energy, we find that chiral symmetry is restored above a certain critical temperature which depends itself on $N$. We find that the ratio of the zero-momentum zero-temperature fermion mass to the critical temperature has a large value compared with four-fermion theories, as had been suggested in a previous work with a momentum-independent self-energy. Evidence of a temperature- dependent critical $N$ is shown to appear in this approximation. The phase diagram for spontaneous mass generation in the theory is presented in $T-N$ space.", "revisions": [ { "version": "v1", "updated": "1992-07-20T11:40:27.000Z" } ], "analyses": { "keywords": [ "finite temperature", "phase structure", "zero-momentum zero-temperature fermion mass", "critical temperature", "schwinger-dyson equation" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable", "inspire": 336197 } } }