INVESTIGADORES
CALZETTA Esteban Adolfo
artículos
Título:
Nontrivial dynamics in the early stages of inflation
Autor/es:
CLAUDIO EL HASI; ESTEBAN CALZETTA
Revista:
PHYSICAL REVIEW D - PARTICLE AND FILDS
Editorial:
APS
Referencias:
Año: 1995 vol. 51 p. 2713 - 2728
ISSN:
0556-2821
Resumen:
Inflationary cosmologies, regarded as dynamical systems, have rather
simple asymptotic behavior insofar as the cosmic baldness principle
holds. Nevertheless, in the early stages of an inflationary process the
dynamical behavior may be very complex. In this paper, we show how even a
simple inflationary scenario, based on Linde?s ??chaotic inflation??
proposal, manifests nontrivial dynamical effects such as the breakup of
invariant tori, the formation of cantori, and Arnol?d?s diffusion. The
relevance of such effects is highlighted by the facts that even the
occurrence or nonoccurrence of inflation in a given universe is
dependent upon them.