Dresden 2011 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 2: Quantum Gases: Bosons 1

Q 2.6: Talk

Monday, March 14, 2011, 11:45–12:00, HÜL 386

Quantum phases of polar bosons in ladder-like lattices — •Xiaolong Deng and Luis Santos — ITP, Uni. Hannover, Appelstr. 2, D-30167 Hannover

We study the ground-state properties of polar bosons (e.g. polar bosonic molecules) loaded in ladder-like lattices. By means of DMRG simulations we determine numerically various ground-state correlation functions. We characterize various quantum phases, including pair supersolid, pair superfluid and various Haldane insulator phases for different interaction regimes, and identify the phase diagram for different fillings. Additionally, we also investigate the entanglement spectrum in such a two-lag ladder with 1/2 filling.