May 6 – 10, 2024
US/Eastern timezone

Effective loop quantum gravity black holes: A covariant, improved-dynamics scheme

May 6, 2024, 5:30 PM
15m
FAU FTL Room 131

FAU FTL Room 131

Cosmology, Black Holes, and other applications/phenomenology Black Holes

Speaker

Idrus Belfaqih (The University of Edinburgh)

Description

We use emergent modified gravity as a covariant, effective framework for obtaining black hole solutions in loop quantum gravity with an arbitrary, scale-dependent holonomy parameter λ in vacuum spherical symmetry. The construction is robust and can be applied in general for any type of triangulation. We obtained vacuum solutions not only for asymptotically flat spacetime but also for dS and AdS backgrounds, where we solved the dynamics in different gauges related by coordinate transformation. In particular, we show that the $\bar{\mu}$-scheme resolves several asymptotic pathologies of the alternative $\mu_0$ scheme where λ is a constant parameter, at the expense of not recovering a flat spacetime in the zero mass limit.

Authors

Erick Ivan Duque (The Pennsylvania State University) Idrus Belfaqih (The University of Edinburgh) Mr Martin Bojowald (The Pennsylvania State University) Suddhasattwa Brahma (The University of Edinburgh)

Presentation materials