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EnglishWe analyze the effects of disorder and quasidisorder on the ground-state properties of ultracold polar bosons in optical lattices.We showthat the interplay between disorder and intersite 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 quasidisorder, the Haldane insulator connects with a gapped generalized incommensurate density wave without an intermediate critical region.
| Titolo: | Polar bosons in one-dimensional disordered optical lattices |
| Autori: | |
| Data di pubblicazione: | 2013 |
| Rivista: | |
| Abstract: | We analyze the effects of disorder and quasidisorder on the ground-state properties of ultracold polar bosons in optical lattices.We showthat the interplay between disorder and intersite 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 quasidisorder, the Haldane insulator connects with a gapped generalized incommensurate density wave without an intermediate critical region. |
| Handle: | http://hdl.handle.net/11386/3953203 |
| Appare nelle tipologie: | 1.1.1 Articolo su rivista con DOI |
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