Criação de fótons no efeito Casimir dinâmico em cavidade oscilante com condições de Neumann e Dirichlet
We consider a massless scalar field in a two-dimensional space-time inside an oscillating cavity with mixed boundary conditions. In order to discuss particle creation phenomenum, we consider the situation of parametric resonance in which the oscillating frequency is twice the frequency of the fir...
| Autor principal: | GRANHEN, Edney Ramos |
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| Grau: | Dissertação |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Pará
2014
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.ufpa.br/jspui/handle/2011/5057 |
| Resumo: |
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We consider a massless scalar field in a two-dimensional space-time inside an oscillating
cavity with mixed boundary conditions. In order to discuss particle creation
phenomenum, we consider the situation of parametric resonance in which the oscillating
frequency is twice the frequency of the first mode of the static cavity. For convenience,
we suppose that one of the boundaries is at rest and imposes Neumann condition to the
field, whereas the other is in non-relativistic motion and imposes a Dirichlet condition on
the field. Following the procedure developed by Dodonov and Klimov (Phys. Rev. A,
56, 2664 (1996)), we compute the number of created particles, the generation rate and
the energy in the cavity. We compare our results with those found in the literature for
the Dirichlet-Dirichlet case. |