## Quantum entanglement at all distances

#### by Subir Sachdev

*Harvard University*

##### at Physics Colloquium

Mon, 21 Jun 2021, 16:00

Zoom

#### Abstract

Many modern materials feature a “strange metal”: a phase of electronic quantum matter without particle-like excitations. I will describe recent progress in the theory of strange metals by drawing upon insights from the solvable Sachdev-Ye-Kitaev model. This model features all-to-all entanglement of electrons, and chaos and thermalization in the shortest possible time, which is of order (Planck’s constant)/(absolute temperature). Insights from the SYK model have also led to many exciting advances in the quantum theory of black holes, which also thermalize in a time of order (Planck’s constant)/(black hole Hawking temperature). I will describe an example: the universal, leading, low temperature correction to the Bekenstein-Hawking entropy of charged black holes in Einstein’s theory of general relativity.

*** This is the annual Racah Lecture organized by the Hebrew University. ***

*** The Zoom link will be sent to all the department members on the day of the event. ***

Created on 14-06-2021 by Kats, Yevgeny (katsye)

Updaded on 14-06-2021 by Kats, Yevgeny (katsye)