Radiative isotropic cosmologies with extra dimensions
We solve Einsteins equations in an n-dimensional vacuum with the simplest ansatz leading to a Friedmann-Robertson-Walker (FRW) four-dimensional space time. We show that the FRW model must be of radiation. For the open models the extra dimensions contract as a result of cosmological evolution. For fl...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1986 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/12403 |
| Acceso en línea: | https://hdl.handle.net/2445/12403 |
| Access Level: | acceso abierto |
| Palabra clave: | Relativitat general (Física) Teoria de camps (Física) Cosmologia Equacions d'Einstein Solucions numèriques Teoria de Kaluza-Klein General relativity (Physics) Field theory (Physics) Cosmology Einstein field equations Numerical solutions Kaluza-Klein theories |
| Sumario: | We solve Einsteins equations in an n-dimensional vacuum with the simplest ansatz leading to a Friedmann-Robertson-Walker (FRW) four-dimensional space time. We show that the FRW model must be of radiation. For the open models the extra dimensions contract as a result of cosmological evolution. For flat and closed models they contract only when there is one extra dimension. |
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