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Non-Riemannian geometries for gravitational physics

Diego Rubiera-Garcia
IA

Abstract
That the underlying structure of space-time is Riemannian or not is as a fundamental question as the number of space - time dimensions or the existence of supersymmetry, and that must be answered by experiment, not by convention or tradition. I this talk I will make a quick review on the consequences of Non-Riemannian geometries in gravitational physics, which are still poorly understood. More specifically I will discuss my results on the relation between such geometries and defected crystals, the generic second-order character of the field equations and the absence of ghosts, the existence of geons, wormholes and non-singular space - times and on cosmic bounces.

2016 February 23, 10:30

IA/U.Lisboa
Faculdade de CiÍncias da Universidade de Lisboa (C6.2.51)
Campo Grande, 1749-016 Lisboa

Instituto de Astrof√≠sica e Ci√™ncias do Espa√ßo Universidade do Porto Faculdade de Ciências da Universidade de Lisboa Funda√ß√£o para a Ci√™ncia e a Tecnologia
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