Beyond geodesics and extremal hypersurfaces in gravity, and Updates on Krylov: Modular Hamiltonians and QCD

Date

Tuesday, February 6, 2024
14:00 - 15:00

Abstract

Michal P. Heller (Ghent University)

Title: Beyond geodesics and extremal hypersurfaces in gravity

Abstract:
Geodesics and extremal hypersurfaces play a critical role in the contemporary understanding of gravity. They compute certain correlation functions, various notions of entropy and, at least sometimes, complexity. I will discuss a new look at this venerable subject motivated by results in Ramesh Chandra’s thesis and recent de Sitter advancements originating from Amsterdam. Based on 2305.11280 and work in progress with Fabio Ori and Alex Serantes.

Pawel Caputa (University of Warsaw)

Title: Updates on Krylov: Modular Hamiltonians and QCD.

Abstract:
I will discuss some of the recent developments in the Krylov complexity story. In particular, I will focus on the applications of the Krylov basis techniques to the modular Hamiltonian evolution and I will discuss a new angle on entanglement entropy in QCD at high energies.

Organiser

String Theory group

Venue

UvA - Faculty of Science

Room number

C4.278

Category

Talk

Topics

quantum matter, string theory

Speakers

Michal P. Heller (Ghent University), Pawel Caputa (University of Warsaw)