University of Cambridge > Talks.cam > AMOP list > Interaction instability of localization in quasiperiodic systems

Interaction instability of localization in quasiperiodic systems

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

  • UserProf. Marko ┼Żnidari─Ź, University of Ljubljana, Slovenia
  • ClockTuesday 19 June 2018, 15:30-16:30
  • HouseRyle Seminar Room (930) .

If you have a question about this talk, please contact Dr Ulrich Schneider.

For classical systems with a finite number of degrees of freedom KAM theorem guarantees stability of integrable systems for sufficiently small perturbations. How about quantum systems in the thermodynamic limit? I will present results showing that systems with quasiperiodic potential can behave completely differently than random ones, where dynamics smoothly changes. Namely, for small interactions there is a discontinuous change from localization to diffusion. Implications for possible many-body localization will be discussed. I will also briefly mention exact results for entanglement dynamics in a putative many-body localized system described by a so-called l-bit Hamiltonian, showing that the growth is not just logarithmic in time as believed so far.

This talk is part of the AMOP list series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2018 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity