2k citations · 12k across the 281 of their papers we have counts for
6 papers · 1 filter
Scale Factor Duality: A Quantum Cosmological Approach
M. C. Bento, O. Bertolami
We consider the minisuperspace model arising from the lowest order string effective action containing the graviton and the dilaton and study solutions of the resulting Wheeler-Dewi…
Decoherence of Friedmann-Robertson-Walker Geometries in the Presence of Massive Vector Fields with U(1) or SO(3) Global Symmetries
O. Bertolami, P. V. Moniz
Retrieval of classical behaviour in quantum cosmology is usually discussed in the framework of {\em midi}superspace models in the presence of scalar fields and the inhomogeneous mo…
On a possible solution for the Polonyi problem in string cosmology
M. C. Bento, O. Bertolami
We establish the main features of homogeneous and isotropic dilaton, metric and Yang-Mills configurations in a cosmological framework. We identify a new energy exchange term betwee…
Decoherence of Homogeneous and Isotropic Metrics in the Presence of Massive Vector Fields
O. Bertolami, P. V. Moniz
Retrieval of classical behaviour in quantum cosmology is usually discussed in the framework of minisuperspace models in the presence of scalar fields together with the inhomogeneou…
Decoherence of Homogeneous and Isotropic Geometries in the Presence of Massive Vector Fields
O. Bertolami, P. V. Moniz
Decoherence of Friedmann-Robertson-Walker (FRW) geometries due to massive vector fields with global symmetry is discussed in the context of Quantum Cosmology. (Talk present…
General Cosmological Features of the Einstein-Yang-Mills-Dilaton System
M. C. Bento, O. Bertolami
We establish the main features of homogeneous and isotropic dilaton, metric and Yang-Mills field configurations in a cosmological framework. Special attention is paid to the energy…