The regular cosmic string in Born-Infeld gravity

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It is shown that Born-Infeld gravity -a high energy deformation of Einstein gravity-removes the singularities of a cosmic string. The respective vacuum solution results to be free of conical singularity and closed timelike curves. The space ends at a minimal circle where the curvature invariants van...

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Detalles Bibliográficos
Autores principales: Ferraro, R., Fiorini, F.
Formato: Documento de conferencia publishedVersion
Lenguaje:Inglés
Publicado: 2011
Materias:
Relativity
Closed timelike curves
Conical singularities
Cosmic strings
Einstein gravity
Cosmology
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_17426588_v314_n1_p_Ferraro
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:It is shown that Born-Infeld gravity -a high energy deformation of Einstein gravity-removes the singularities of a cosmic string. The respective vacuum solution results to be free of conical singularity and closed timelike curves. The space ends at a minimal circle where the curvature invariants vanish; but this circle cannot be reached in a finite proper time. © Published under licence by IOP Publishing Ltd.

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