Polar bosons in one-dimensional disordered optical lattices

Xiaolong Deng; Roberta Citro; Edmond Orignac; Anna Minguzzi; Luis Santos

Polar bosons in one-dimensional disordered optical lattices

Xiaolong Deng ¹ Roberta Citro ² Edmond Orignac ³ Anna Minguzzi ⁴ Luis Santos ⁵

1 Institut für Theoretische Physik

2 Dipartamento di Fisica "E. R. Caianiello"

3 Phys-ENS - Laboratoire de Physique de l'ENS Lyon

4 LPM2C - Laboratoire de physique et modélisation des milieux condensés

5 Theoretical Quantum Optics Group

Institut für Theoretische Physik

Abstract : We analyze the effects of disorder and quasi-disorder on the ground-state properties of ultra-cold polar bosons in optical lattices. We show that the interplay between disorder and inter-site interactions leads to rich phase diagrams. 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.

Keywords : Ultracold atoms dipolar interactions Aubry-André transition Anderson localization

Document type :

Journal articles

Domain :

Physics [physics] / Condensed Matter [cond-mat] / Quantum Gases [cond-mat.quant-gas]

Complete list of metadatas

https://hal-ens-lyon.archives-ouvertes.fr/ensl-00842759
Contributor : Edmond Orignac <>
Submitted on : Tuesday, July 9, 2013 - 12:41:45 PM
Last modification on : Friday, February 22, 2019 - 4:54:02 PM

Polar bosons in one-dimensional disordered optical lattices

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Polar bosons in one-dimensional disordered optical lattices

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