![[Search]](/static/images/search.gif){kind=small}
![[A-Z Index]](/static/images/az.gif){kind=small}
![[Contact]](/static/images/contact.gif){kind=small}
![[University of Cambridge]](/static/images/identifier2.gif){kind=small}
![[Talks.cam]](/static/images/talkslogosmall.gif)
Jorge Kurchan, ENS Paris
Thursday 20 May 2021, 14:00-15:00
Low-temperature quantum bounds in simple models
- đ¤ Speaker: Jorge Kurchan, ENS Paris
- đ Date & Time: Thursday 20 May 2021, 14:00 - 15:00
- đ Venue: Details of video conferencing will be distributed nearer the time.
Abstract
In the past few years there has been considerable activity around a set of quantum bounds on transport coefficients (viscosity, conductivity) and on chaos (Lyapunov exponents), relevant at low temperatures. The interest comes from the fact that AdS/CFT Black-Hole models seem to saturate all of them. To fix ideas, a simple case is that of systems whose lowest energy is a degenerate manifold, rather than a point. Examples are quantum hard-sphere liquids and quantum spin liquids. In this context the bounds are approached and are consequences of the uncertainty principle, and one understands the mechanisms whereby quantum mechanics enforces them. For a system to saturate the bound, it appears as a necessary condition that at each temperature there are some degrees of freedom that are still classical, and some are on the verge of being affected by quantum effects.
Series This talk is part of the Theory of Condensed Matter series.
Included in Lists
- All Cavendish Laboratory Seminars
- All Talks (aka the CURE list)
- Centre for Health Leadership and Enterprise
- Combined TCM Seminars and TCM blackboard seminar listing
- Details of video conferencing will be distributed nearer the time.
- Featured lists
- few29
- Lennard-Jones Centre external
- ME Seminar
- Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
- PMRFPS's
- School of Physical Sciences
- Theory of Condensed Matter
- Thin Film Magnetic Talks
Note: Ex-directory lists are not shown.