Self-consistent solutions of the semi-classical Einstein equations with cosmological constant and perfect fluid
Exact solutions of the semi-classical Einstein equations with cosmological constant for conformally invariant free quantum fields in a spatially flat Robertson-Walker metric are found when a classical perfect fluid is present. The stability of the asymptotically Friedmann-de Sitter solutions is stud...
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| Autores principales: | , |
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| Publicado: |
1993
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004640X_v201_n2_p341_Chimento http://hdl.handle.net/20.500.12110/paper_0004640X_v201_n2_p341_Chimento |
| Aporte de: |
| Sumario: | Exact solutions of the semi-classical Einstein equations with cosmological constant for conformally invariant free quantum fields in a spatially flat Robertson-Walker metric are found when a classical perfect fluid is present. The stability of the asymptotically Friedmann-de Sitter solutions is studied. The formers are found to be stable if α < 0, while the stability of the latter depends of the signs of α β, and A. © 1993 Kluwer Academic Publishers. |
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