TY  - JOUR
AU  - Lobo, F. S. N.
AU  - Martinez-Asencio, J.
AU  - Olmo, G. J.
AU  - Rubiera-Garcia, D.
PY  - 2014
DA  - 2014//
TI  - Planck scale physics and topology change through an exactly solvable model
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 163
EP  - 167
VL  - 731
PB  - Elsevier Science Bv
KW  - Modified gravity
KW  - Palatini formalism
KW  - Planck scale physics
KW  - Dynamical Vaidya solutions
KW  - Topology change
AB  - We consider the collapse of a charged radiation fluid in a Planck-suppressed quadratic extension of General Relativity (GR) formulated A la Palatini. We obtain exact analytical solutions that extend the charged Vaidya-type solution of GR, which allows to explore in detail new physics at the Planck scale. Starting from Minkowski space, we find that the collapsing fluid generates wormholes supported by the electric field. We discuss the relevance of our findings in relation to the quantum foam structure of space-time and the meaning of curvature divergences in this theory.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1311.5712
UR  - https://doi.org/10.1016/j.physletb.2014.02.038
DO  - 10.1016/j.physletb.2014.02.038
LA  - English
N1  - WOS:000334094500028
ID  - Lobo_etal2014
ER  -