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 LPMMC - 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
Type de document :
Article dans une revue
Physical Review B : Condensed matter and materials physics, American Physical Society, 2013, 87 (19), pp.195101. 〈10.1103/PhysRevB.87.195101〉
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https://hal-ens-lyon.archives-ouvertes.fr/ensl-00842759
Contributeur : Edmond Orignac <>
Soumis le : mardi 9 juillet 2013 - 12:41:45
Dernière modification le : jeudi 19 avril 2018 - 14:54:03

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ENS-LYON | LPMMC | UGA | UNIV-LYON1

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Xiaolong Deng, Roberta Citro, Edmond Orignac, Anna Minguzzi, Luis Santos. Polar bosons in one-dimensional disordered optical lattices. Physical Review B : Condensed matter and materials physics, American Physical Society, 2013, 87 (19), pp.195101. 〈10.1103/PhysRevB.87.195101〉. 〈ensl-00842759〉

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