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Títol:
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Dilaton quantum cosmology in two dimensions
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Autor/a:
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Mazzitelli, Francisco D.; Russo, J. G. (Jorge Guillermo)
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Altres autors:
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Universitat de Barcelona |
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Abstract:
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We consider a renormalizable two-dimensional model of dilaton gravity coupled to a set of conformal fields as a toy model for quantum cosmology. We discuss the cosmological solutions of the model and study the effect of including the back reaction due to quantum corrections. As a result, when the matter density is below some threshold new singularities form in a weak-coupling region, which suggests that they will not be removed in the full quantum theory. We also solve the Wheeler-DeWitt equation. Depending on the quantum state of the Universe, the singularities may appear in a quantum region where the wave function is not oscillatory, i.e., when there is not a well-defined notion of classical spacetime. |
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Matèries:
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-General relativity (Physics)
-Gravitació
-Matèria interstel·lar
-Cosmologia
-Relativitat general (Física)
-Gravitation
-Interstellar matter
-Cosmology |
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Drets:
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(c) The American Physical Society, 1993
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Tipus de document:
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Article
Article - Versió publicada |
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Publicat per:
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The American Physical Society
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Compartir:
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