We prove that in the Hartle-Hawking approach to quantum cosmology the existence of an inflationary phase is a general property of minisuperspace models given by a closed Friedmann-Robertson- Walker universe containing a massless scalar field with a lambda phi**n self-interaction. The evolution in time of the cosmic scale factor and of the scalar field in the very early universe is derived, together with the constraints to be satisfied in order to solve the horizon and flatness problems.
Inflationary solutions in quantum cosmology / Esposito, G; Platania, G. - In: CLASSICAL AND QUANTUM GRAVITY. - ISSN 0264-9381. - 5:7(1988), pp. 937-949. [10.1088/0264-9381/5/7/003]
Inflationary solutions in quantum cosmology
ESPOSITO GPrimo
;
1988
Abstract
We prove that in the Hartle-Hawking approach to quantum cosmology the existence of an inflationary phase is a general property of minisuperspace models given by a closed Friedmann-Robertson- Walker universe containing a massless scalar field with a lambda phi**n self-interaction. The evolution in time of the cosmic scale factor and of the scalar field in the very early universe is derived, together with the constraints to be satisfied in order to solve the horizon and flatness problems.| File | Dimensione | Formato | |
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