Kinetic constraints and topological order in driven optical lattices
- Date
- Jun 2, 2015
- Time
- 11:00 AM - 12:00 PM
- Speaker
- Dr. Stefanos Kourtis
- Affiliation
- University of Cambridge, Cavendish Laboratory
- Language
- en
- Main Topic
- Materialien
- Other Topics
- Materialien, Physik
- Host
- Grit Rötzer
- Description
- Motivated by recent experiments on periodically driven optical lattices, we investigate how imposing kinetic restrictions on quantum particles that would otherwise hop freely on a two-dimensional lattice can lead to topologically ordered states. After introducing a broad class of models, we focus on particular realizations and show numerically that they exhibit topological order, as witnessed by topological ground-state degeneracies and the quantization of corresponding invariants. These results demonstrate that the correlations responsible for fractional quantum Hall states in lattices can arise in models involving terms other than density-density interactions. .
- Links
Last modified: Jun 2, 2015, 9:43:59 AM
Location
Leibniz Institut für Festkörper- und Werkstoffforschung Dresden (B3E.26, IFW Dresden)Helmholtzstraße2001069Dresden
- Homepage
- http://www.ifw-dresden.de
Organizer
Leibniz Institut für Festkörper- und Werkstoffforschung DresdenHelmholtzstraße2001069Dresden
- Homepage
- http://www.ifw-dresden.de
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