Audio / Video

Quantum Quenches

  • 01:14:04

Description

In a quantum quench, a many-body system is prepared at time t=0 in a state which is typically the ground state of some hamiltonian, but it then evolves for times t>0 with a different hamiltonian. Moreover it evolves by the standard laws of quantum mechanics as an isolated system without any dissipation. Until recently this was a purely theoretical problem but now such protocols can be realised in ultra-cold atoms. I shall describe some of the interesting questions and the theoretical answers which have been emerged from simple models. These center around whether and in what sense the system behaves as though it were at finite temperature, and how this relates to other ideas of thermalization and to quantum entanglement.

Details

Title

Quantum Quenches

Creator

University of California, Berkeley. Dept. of Physics

Published

Berkeley, CA, University of California, Berkeley, Dept. of Physics, September 28, 2015

Full Collection Name

Physics Colloquia

Type

Video

Format

Lecture.

Extent

1 streaming video file

Other Physical Details

digital, sd., col.

Archive

Physics Library

Note

Recorded at a colloquium held on September 28, 2015, sponsored by the Dept. of Physics, University of California, Berkeley.

originally produced as an .mts file in 2016

Speakers: Cardy, John.

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Collection

Physics Colloquia

Tracks

colloquia/9-28-15Cardy.mp4 01:14:04

Linked Resources

View record in Digital Collections.