Artículo
RG study of a non-local sine-Gordon model
Fecha de publicación:
07/2003
Editorial:
Elsevier Science
Revista:
Nuclear Physics B
ISSN:
0550-3213
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We study a non-local version of the sine-Gordon model connected to a many-body system with backward and umklapp scattering processes. Using renormalization group methods we derive the flow equations for the couplings and show how non-locality affects the gap in the spectrum of charge-density excitations. We compare our results with previous predictions obtained through the self-consistent harmonic approximation. © 2003 Elsevier B.V. All rights reserved.
Palabras clave:
Field Theory
,
Non-Local
,
Renormalization Group
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Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Naon, Carlos Maria; Salvay, Mariano Juan; RG study of a non-local sine-Gordon model; Elsevier Science; Nuclear Physics B; 663; 3; 7-2003; 591-604
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