Events Daily

Wednesday, February 1, 2023

HEP Journal Club
Event Type: Other
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

Topological stars in gravity
Ibrahima Bah, John Hopkins University
Event Type: HEP Seminar
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: In this talk I will discuss aspects of microscopic degrees of freedom of gravity as motivated by string theory. Although these are expected to be generically quantum mechanical, our goal is to understand a class of such states that are coherent enough to admit classical descriptions in Einstein gravity. The construction of such states corresponds to adding interesting topological structures in spacetime with the help of compact extra dimensions. They manifestly behave as ultra-compact objects, dubbed topological stars, which can also model black hole microstates. I will discuss why it is interesting to understand such objects in a new age of black hole astrophysics.

Link to the Event Video