University of Cambridge > Talks.cam > Electronic Structure Discussion Group > Strongly correlated electrons driven by an electric field

Strongly correlated electrons driven by an electric field

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Dr. Mike Towler.

The out-of-equilibrium physics of correlated electrons is attracting a lot of interest, motivated by new experimental realizations in non-linear transport in devices, heterostructures and cold atoms. In this talk, I will focus on the Hubbard-U model driven out of equilibrium by a constant electric field E. I will briefly explain how one can solve the finite-U finite-E problem directly in the steady state (bypassing the transient dynamics) by means of a new dynamical mean-field theory. Afterwards, I will mainly discuss the fate of the Mott physics in the non-linear (strong E) regime by detailing two key features: – the dimensional crossover towards a lower dimensional system; – the dielectric breakdown of the Mott insulator.

References:

C. Aron, G. Kotliar, C. Weber, Phys. Rev. Lett. 108, 086401 (2012)
C. Aron, arXiv:1203:3540 (2012)

This talk is part of the Electronic Structure Discussion Group series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2017 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity