IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
artículos
Título:
A type of Born-Infeld Regular Gravity and its Cosmological Consequences
Autor/es:
F.FIORINI AND R.FERRARO
Revista:
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
Editorial:
WORLD SCIENTIFIC PUBL CO PTE LTD
Referencias:
Año: 2009 p. 1686 - 1689
ISSN:
0217-751X
Resumen:
Born-Infeld deformation strategy to smooth theories having divergent solutions is applied to the teleparallel equivalent of General Relativity The equivalence between teleparallelism and General Relativity is exploited to obtain a deformed theory of gravity based on second order differential equations since teleparallel Lagrangian is built just from first derivatives of the vielbein. We show that Born-Infeld teleparallelism cures the initial singularity in a spatially at FRW universe; moreover, it provides a natural inationary stage without resorting to an infaton field. The Born-Infeld parameter lambda bounds the dynamics of Hubble parameter H(t) and establishes a maximum attainable spacetime curvature.