von Keyserlingk, Curt

Date: Monday, August 22, 2016
Time: 14:00
Place: ETH Zurich, Hönggerberg, HIT K 51
Host: Tilman Esslinger / Michael Messer

New driven phases of quantum matter

Curt von Keyserlingk
Princeton Center for Theoretical Sciences, Princeton, USA

Recent work suggests that a sharp definition of `phase of matter' can be given for some quantum systems out of equilibrium---first for many-body localized systems with time independent Hamiltonians and more recently for periodically driven or Floquet localized systems.  We present a new family of interacting localized Floquet phases, which are driven analogues  of the 1d symmetry protected topological phases familiar from the equilibrium setting. We also present driven analogues of symmetry breaking states, one of which has recently been dubbed a ’time crystal’.