[institut] [phys4phys] Group for Gravitation, Particle and Fields seminar, Friday, 23 February 2024

[dgocanin]

Dear colleagues,

You are cordially invited to the seminar of the Group for Gravitation, 
Particles and Fields, which will be held on Friday, 23 February 2024, at 
11:00 at the Institute of Physics, lecture hall 360.

The talk entitled

Chaos and factorization beyond classical horizons

will be given by Mihailo Čubrović (Institute of Physics, Zemun).

Abstract: Chaotic dynamics of black holes has proven to be of vital 
importance for the understanding of the black hole information problem. 
Within the replica formalism, a related issue is that of 
nonfactorization of partition functions of wormhole geometries. We 
consider these questions deep in the stringy regime, described by the 
BFSS and IKKT matrix models, where the notions of geometry and horizon 
do not apply anymore. Generic solutions factorize when averaged over the 
quantum fluctuations, whereas the chaotic properties are non-universal. 
We argue that the correct notion that characterizes the black hole 
scrambling is instead that of quantum magic (stabilizer Renyi entropy), 
which guarantees that the dynamics is complex enough to accommodate the 
total information on infalling matter.

*********************************************

Time: February 23, 2024 11:00 Belgrade

Institute of Physics, lecture hall 360, 2nd floor

BigBlueButton platform link: 
https://gravityserver.ipb.ac.rs/b/mar-ae0-f4q-qww

*********************************************

Best regards,
Dragoljub