Title:  Strongly interacting bosons on optical lattice ladders with flux

Speaker: Ulrich Schollwöck, University of Munich

Abstract:

In this talk I will study the rich phase diagrams emerging for two-leg and three-leg ladders in optical lattices with interacting bosons exposed to strong magnetic flux (as is hard to achieve in real solids): Meissner phases, vortex phases, vortex lattices, ... Among other things, one observes the reversal of the direction of the chiral (Meissner) currents compared to the naively expected direction. The mechanisms behind this observation are all due to interaction effects. 

Time and place: Monday 31/8, 15:15-16:00 in 1525-323.

There will be coffee, tea and cake  from 15:00.

Alexander Holm Kiilerich, Jens Jakob W. H. Sørensen and Klaus Mølmer