Inflation in inhomogeneous spacetimes: bubble evolution
The evolution of a vacuum bubble embedded in an inhomogeneous spacetime is relevant for the modelling of inflation in the presence of inhomogeneities. We developed a numerical scheme based on Israel’s matching conditions to solve the evolution of the bubble for spherically symmetric inhomogeneous b...
Guardado en:
| Autores principales: | , |
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| Formato: | Objeto de conferencia |
| Lenguaje: | Inglés |
| Publicado: |
2014
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/165276 |
| Aporte de: |
| Sumario: | The evolution of a vacuum bubble embedded in an inhomogeneous spacetime is relevant for the modelling of inflation in the presence of inhomogeneities.
We developed a numerical scheme based on Israel’s matching conditions to solve the evolution of the bubble for spherically symmetric inhomogeneous backgrounds. Particular attention is paid to spacetimes with perfect fluid with non-zero pressure as a source, which are described by Lemaître solution of Einstein’s equations. As a previous step that serves as a check of the numerical scheme, we present here the case of a bubble evolving in a FLRW metric with radiation as a source. |
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