Talk by Professor Arnab Kundu, Saha Institute for Nuclear Physics, Kolkata, India at QASTM seminar
Channel: Sayantan Choudhury
Date: 2021-06-10

Title: Information Recovery from Black Holes in Doubly Holographic Models

Abstract: In recent times, a lot of progress has been made in uncovering
how fine-grained physics can be accessed within a semi-classical treatment
of Black Holes, especially in asymptotically anti-de-Sitter (AdS) spacetimes. In particular, in the framework of the so-called Doubly Holographic Models, these aspects crystalize in a precise mathematical question that can be addressed in a controlled calculation. In this talk, we will begin with a basic review of these models and subsequently, we will use this framework to investigate the role of the bath degrees of freedom in the corresponding Page curve of the black hole. In particular, we will focus on how coarse-graining in the bath degrees of freedom affects the extraction of the fine-grained entropy of the Black Hole, in an asymptotically AdS spacetime. The lessons learned are qualitatively true irrespective of the dimensions of spacetime. This talk will be based on recent work, as well as work under progress.

Speaker: Professor Arnab Kundu, Saha Institute of Nuclear Physics, Kolkata, India.

Date and Time: 10th June, 2021, 6.30 PM to 9.00 PM India time (3:00 PM to 5.30 PM Berlin time).

Zoominar link: https://mpi-aei.zoom.us/j/97623339163

Contact: Dr. Sayantan Choudhury (sayantan.choudhury@niser.ac.in)