Non Singular Promises from Born-Infeld Gravity

Authors
Fiorini, Franco Luis
Publication Year
2013
Language
English
Format
article
Status
Published version
Description
Born-Infeld determinantal gravity formulated in Weitzenbock spacetime is discussed in the context of Friedmann-Robertson-Walker (FRW) cosmologies. It is shown how the standard model big bang singularity is absent in certain spatially flat FRW spacetimes, where the high energy regime is characterized by a de Sitter inflationary stage of geometrical character, i.e., without the presence of the inflaton field. This taming of the initial singularity is also achieved for some spatially curved FRW manifolds where the singularity is replaced by a de Sitter stage or a big bounce of the scale factor depending on certain combinations of free parameters appearing in the action. Unlike other Born-Infeld-like theories in vogue, the one here presented is also capable of deforming vacuum general relativistic solutions.
Fil: Fiorini, Franco Luis. Comision Nacional de Energia Atomica. Gerencia del Área Investicaciones y Aplicaciones No Nucleares;
Subject
BORN
INFELD
GRAVITY
Ciencias Naturales y Exactas
Ciencias Físicas
Física de Partículas y Campos
Access level
Open access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/656