Sep 25 – 30, 2023
Protea Hotel King George
Africa/Johannesburg timezone

Topological Stars and Gravity

Sep 28, 2023, 5:00 PM
Charlotte Room (Protea Hotel King Room)

Charlotte Room

Protea Hotel King Room

Invited Talk Physics Research Parallel Session 2


Ibrahima Bah (Johns Hopkins University)


In this talk, I will discuss aspects of microscopic degrees of freedom of gravity and the physical motivation of quantum gravity. While the generic states are quantum mechanical, our goal will be to understand a class of them that are coherent enough to admit classical descriptions in Einstein gravity. The existence of these state require topological structures in spacetime that follow from the dynamics of compact extra dimensions. They behave as ultra-compact objects, dubbed topological stars, which can also model microscopic degrees of freedom of black holes. I will discuss why it is interesting to understand such objects in a new age of black hole astrophysics, and various aspects of their observational properties.

Abstract Category Particle Physics

Primary author

Ibrahima Bah (Johns Hopkins University)

Presentation materials