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Meaning, implications and resolution of space-time singularities in Palatini gravity

Diego Rubiera-Garcia

Since the establishment of the theorems on singularities in the 70's, a great deal of effort have been made within gravitational physics to clarify their meaning and to find regular space-times (singularity-free). In this talk I will explain how space-time singularities can be resolved within the context of the Palatini approach to modified gravity in simple, clean and robust scenarios without any ad hoc constraint. Our results provide a explicit example where a space-time can be non-singular despite the generic divergence of curvature scalars.

2015 October 15, 14:00

Faculdade de Ciências da Universidade de Lisboa (C6.2.51)
Campo Grande, 1749-016 Lisboa

Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia