Finite density and temperature in hybrid bag models

We introduce the chemical potential in a system of two-flavored massless fermions in a chiral bag, with an external Skyrmion, by imposing boundary conditions in the Euclidean time direction. We express the fermionic mean number in terms of a functional trace involving the Green function of the bound...

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Detalles Bibliográficos
Autores: De Francia, Marcelo María, Falomir, Horacio Alberto, Loewe, Marcelo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1999
País:Argentina
Institución:Universidad Nacional de La Plata
Repositorio:SEDICI (UNLP)
Idioma:inglés
OAI Identifier:oai:sedici.unlp.edu.ar:10915/131475
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131475
Access Level:acceso abierto
Palabra clave:Ciencias Exactas
Física
fermionic number
hybrid chiral bags
Descripción
Sumario:We introduce the chemical potential in a system of two-flavored massless fermions in a chiral bag, with an external Skyrmion, by imposing boundary conditions in the Euclidean time direction. We express the fermionic mean number in terms of a functional trace involving the Green function of the boundary value problem, which is studied analytically. Numerical evaluations for the fermionic number are presented.