Nota de FísicaPublicado
Non-minimal Coupling and Quantum Cosmology
M. Novello; V. M. C. Pereira; Nelson Pinto Neto
1991
Dados da publicação
- Autores
- M. Novello; V. M. C. Pereira; Nelson Pinto Neto
- Tipo
- Nota de Física
- Status
- Publicado
- Data de publicação
- 1991
- Descrição
- We consider a minisuperspace cosmological model generated by coupling non-minimally a vector field with the gravitational field. The classical solutions are divided in three sets: singular solutions eternal universes with a expansion phase and flat spacetime. We apply quantum cosmological arguments to investigate which of them is the most probable classical solution. The semi-classical cosmological wave functions satisfy the Correspondence Principle and examples are shown in which the three set of classical solutions can be predicted from different classes of WKB wave functions As a particular example, we have considered the no-boundary wave function and shown that it predicts flat spacetime which is however classically unstable The unique expansion solution that arises from this instability is an Eternal Universe.
- Ano
- 1991
- Número
- CBPF-NF-059/91
- Vínculo com tese
- Não
- Vínculo com bolsa
- Não