DPG Phi
Verhandlungen
Verhandlungen
DPG

Hannover 2013 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

Q: Fachverband Quantenoptik und Photonik

Q 18: Quantum gases: Mixtures, spinor gases, disorder effects

Q 18.7: Talk

Monday, March 18, 2013, 18:00–18:15, E 001

polar bosons in 1D disordered optical lattices — •Xiaolong Deng1, Roberta Citro2, Edmond Orignac3, Anna Minguzzi4, and Luis Santos11ITP, Universitaet Hannover, Germany — 2Department of Physics, University Salerno, Italy — 3LPMMC, CNRS, Grenoble, France — 4ENS, Lyon, France

The effects of disorder and quasi-disorder on the ground-state properties of ultra-cold polar bosons in optical lattices are very interesting. In this talk, we show the rich phase diagrams from the interplay between (quasi-)disorder and inter-site interactions. A uniform disorder leads to a Haldane-insulator phase with finite parity order, whereas the density-wave phase becomes a Bose-glass at very weak disorder. For quasi-disorder, the Haldane insulator connects with a gapped generalized incommesurate density wave without an intermediate critical region. In addition, a novel kind of topological phase in the model will be discussed.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2013 > Hannover