Divergencies in the Casimir energy for a medium with realistic ultraviolet behavior

We consider a dielectric medium with an ultraviolet behavior as it follows from the Drude model. Compared with dilute models, this has the advantage that, for large frequencies, two different media behave the same way. As a result one expects the Casimir energy to contain less divergencies than for...

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Detalles Bibliográficos
Autores principales: Falomir, Horacio Alberto, Kirsten, Klaus, Rebora, Karin Guillermina
Formato: Articulo
Lenguaje:Inglés
Publicado: 2001
Materias:
Ciencias Exactas
Física
Specific calculations
Theory of quantized fields
Permittivity
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131833
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-131833
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
Specific calculations
Theory of quantized fields
Permittivity
spellingShingle Ciencias Exactas
Física
Specific calculations
Theory of quantized fields
Permittivity
Falomir, Horacio Alberto
Kirsten, Klaus
Rebora, Karin Guillermina
Divergencies in the Casimir energy for a medium with realistic ultraviolet behavior
topic_facet Ciencias Exactas
Física
Specific calculations
Theory of quantized fields
Permittivity
description We consider a dielectric medium with an ultraviolet behavior as it follows from the Drude model. Compared with dilute models, this has the advantage that, for large frequencies, two different media behave the same way. As a result one expects the Casimir energy to contain less divergencies than for the dilute media approximation. We show that the Casimir energy of a spherical dielectric ball contains just one divergent term, a volume one, which can be renormalized by introducing a contact term analogous to the volume energy counterterm needed in bag models.
format Articulo
Articulo
author Falomir, Horacio Alberto
Kirsten, Klaus
Rebora, Karin Guillermina
author_facet Falomir, Horacio Alberto
Kirsten, Klaus
Rebora, Karin Guillermina
author_sort Falomir, Horacio Alberto
title Divergencies in the Casimir energy for a medium with realistic ultraviolet behavior
title_short Divergencies in the Casimir energy for a medium with realistic ultraviolet behavior
title_full Divergencies in the Casimir energy for a medium with realistic ultraviolet behavior
title_fullStr Divergencies in the Casimir energy for a medium with realistic ultraviolet behavior
title_full_unstemmed Divergencies in the Casimir energy for a medium with realistic ultraviolet behavior
title_sort divergencies in the casimir energy for a medium with realistic ultraviolet behavior
publishDate 2001
url http://sedici.unlp.edu.ar/handle/10915/131833
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AT kirstenklaus divergenciesinthecasimirenergyforamediumwithrealisticultravioletbehavior
AT reborakaringuillermina divergenciesinthecasimirenergyforamediumwithrealisticultravioletbehavior
bdutipo_str Repositorios
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