RG study of a non-local sine-Gordon model

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 excitat...

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Detalles Bibliográficos
Autores principales: Naón, Carlos María, Salvay, Mariano J.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2003
Materias:
Ciencias Exactas
Física
Field theory
Non-local
Renormalization group
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131041
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-131041
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Field theory
Non-local
Renormalization group
spellingShingle Ciencias Exactas
Física
Field theory
Non-local
Renormalization group
Naón, Carlos María
Salvay, Mariano J.
RG study of a non-local sine-Gordon model
topic_facet Ciencias Exactas
Física
Field theory
Non-local
Renormalization group
description 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.
format Articulo
Articulo
author Naón, Carlos María
Salvay, Mariano J.
author_facet Naón, Carlos María
Salvay, Mariano J.
author_sort Naón, Carlos María
title RG study of a non-local sine-Gordon model
title_short RG study of a non-local sine-Gordon model
title_full RG study of a non-local sine-Gordon model
title_fullStr RG study of a non-local sine-Gordon model
title_full_unstemmed RG study of a non-local sine-Gordon model
title_sort rg study of a non-local sine-gordon model
publishDate 2003
url http://sedici.unlp.edu.ar/handle/10915/131041
work_keys_str_mv AT naoncarlosmaria rgstudyofanonlocalsinegordonmodel
AT salvaymarianoj rgstudyofanonlocalsinegordonmodel
bdutipo_str Repositorios
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