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Pushing the frontiers of gravitational encounters and collisionless dynamics
The long range nature of gravity complicates the dynamics of self-gravitating many-body systems such as galaxies and dark matter (DM) halos. Relaxation/equilibration of perturbed galaxies and cold dark matter halos...
Nov 22, 2022
Bootstrapping N = 4 sYM correlators using integrability
In this talk we combine integrability and conformal bootstrap to learn about correlation functions of planar maximally supersymmetric Yang- Mills theory. Focusing on correlators of four stress-tensor multiplets, we first...
Oct 14, 2022
Notes on Rapid AI Progress
In this talk I'll try to summarize why AI is making such rapid progress and why I expect that it will continue, leading to enormous impacts on pretty much everything...
Oct 18, 2022
Cosmology and astrophysics with the extragalactic light: background and fluctuations
Cosmology and astrophysics with the extragalactic light: background and fluctuations Abstract: The aggregate light emitted by all extragalactic sources can be measured either as an absolute intensity or through its...
Oct 18, 2022
TBA
Abstract TBA Zoom link: https://pitp.zoom.us/j/91804523922?pwd=M0NBa21NVklLUjBiY2pPR1ExdXZxQT09
Oct 25, 2022
TBA
Abstract and Zoom Link: TBD
Oct 28, 2022
Localizing Information in Quantum Gravity and State-dressed Local Operators in AdS/CFT
It is well known that quantum information can be strictly localized in quantum field theory. Similarly, one can also localize information in classical gravity up to quantities like the ADM...
Nov 11, 2022
The holographic dual of Renyi relative entropy
The relative entropy is a measure of the distinguishability of two quantum states. A great deal of progress has been made in the study of the relative entropy between an...
Oct 11, 2019
Strings on the Keldysh Contour
There is a fundamental tension between what string theory computes (S-matrix elements) and what you can compute in QFT on a time-dependent backgrounds (real time operator expectation values). The prescription...
Oct 15, 2019
Black Hole Entropy from Soft Hair
Black Hole Entropy is a well established concept and arises naturally once one realises that black holes are characterised by a temperature. Boltzmann established that entropy can be regarded as...
Oct 17, 2019