## Gravitational Order from Quantum Chaos

#### by Prof. Micha Berkooz

*Weizmann Institute of Science*

##### at Physics Colloquium

Tue, 13 Feb 2024, 15:15

Ilse Katz Institute for Nanoscale Science & Technology (51), room 015

#### Abstract

Over the last 15 years Quantum Information tools became essential in the discussion of Gravity at its most fundamental level. Black holes, as systems that garble up information, forced into the game - in a very concrete and quantifiable way - notions from Quantum Chaos theory. Oddly, other complex systems such as strange metals, model of complex nuclei and random matrix theory models are closely related to black holes. I will briefly survey these relations, primarily through the perspective of the Sachdev-Ye-Kitaev system of a large number of fermions with a k-local interaction. The latter, as well as a whole class of other theories, is completely solvable a new way which goes beyond the familiar large N techniques. In particular it teaches us about new symmetry principles which govern Quantum Chaos and low dimensional Quantum Gravity in some cases, and about new types of uncertainty relations in these spacetimes.

Created on 08-01-2024 by Maniv, Eran (eranmaniv)

Updaded on 04-02-2024 by Maniv, Eran (eranmaniv)