On planar fermions with quartic interaction at finite temperature and density

We study the breaking of parity symmetry in the 2+1 Gross-Neveu model at finite temperature with chemical potential μ, in the presence of an external magnetic field. We find that the requirement of gauge invariance, which is considered mandatory in the presence of gauge fields, breaks parity at any...

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Detalles Bibliográficos
Autores principales: Cabra, Daniel Carlos, Rossini, Gerardo Luis
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2002
Materias:
Física
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/132364
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-132364
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
spellingShingle Física
Cabra, Daniel Carlos
Rossini, Gerardo Luis
On planar fermions with quartic interaction at finite temperature and density
topic_facet Física
description We study the breaking of parity symmetry in the 2+1 Gross-Neveu model at finite temperature with chemical potential μ, in the presence of an external magnetic field. We find that the requirement of gauge invariance, which is considered mandatory in the presence of gauge fields, breaks parity at any finite temperature and provides for dynamical mass generation, preventing symmetry restoration for any non-vanishing μ. The dynamical mass becomes negligibly small as temperature is raised.
format Articulo
Preprint
author Cabra, Daniel Carlos
Rossini, Gerardo Luis
author_facet Cabra, Daniel Carlos
Rossini, Gerardo Luis
author_sort Cabra, Daniel Carlos
title On planar fermions with quartic interaction at finite temperature and density
title_short On planar fermions with quartic interaction at finite temperature and density
title_full On planar fermions with quartic interaction at finite temperature and density
title_fullStr On planar fermions with quartic interaction at finite temperature and density
title_full_unstemmed On planar fermions with quartic interaction at finite temperature and density
title_sort on planar fermions with quartic interaction at finite temperature and density
publishDate 2002
url http://sedici.unlp.edu.ar/handle/10915/132364
work_keys_str_mv AT cabradanielcarlos onplanarfermionswithquarticinteractionatfinitetemperatureanddensity
AT rossinigerardoluis onplanarfermionswithquarticinteractionatfinitetemperatureanddensity
bdutipo_str Repositorios
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