19–21 Feb 2019
"Sapienza" University, Phys. Dept. Marconi
Europe/Rome timezone

Black holes in an effective field theory extension of general relativity

20 Feb 2019, 11:49
17m
Aula Amaldi ("Sapienza" University, Phys. Dept. Marconi)

Aula Amaldi

"Sapienza" University, Phys. Dept. Marconi

Rome
talk Beyond Einstein's Gravity Beyond Einstein's Gravity

Speaker

Masashi Kimura (Instituto Superior Tecnico, Universidade de Lisboa)

Description

Effective field theory methods suggest that some rather-general extensions of General Relativity include higher-order curvature corrections, with small coupling constants. In this talk, we discuss black hole solutions in such a framework. First, we construct spherically symmetric black hole solutions and study gravitational perturbation around them. Despite the higher-order operators of the theory, we show that linearized field equations obey second-order differential equations. We also study slowly rotating solutions around spherically symmetric black hole solutions and show that the spacetimes do not have $Z_2$ symmetry due to the parity violating term.

Primary author

Masashi Kimura (Instituto Superior Tecnico, Universidade de Lisboa)

Presentation materials