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EnglishWe study persistent currents for interacting one-dimensional bosons on a tight ring trap, subjected to a rotating barrier potential, which induces an artificial U(1) gauge field. We show that, at intermediate interactions, the persistent current response is maximal, due to a subtle interplay of effects due to the barrier, the interaction, and quantum fluctuations. These results are relevant for ongoing experiments with ultracold atomic gases on mesoscopic rings.
http://hdl.handle.net/11384/57420| Titolo: | Optimal persistent currents for interacting bosons on a ring with a gauge field |
| Autori interni: | ROSSINI, DAVIDE |
| Data di pubblicazione: | 2014 |
| Rivista: | PHYSICAL REVIEW LETTERS |
| Abstract: | We study persistent currents for interacting one-dimensional bosons on a tight ring trap, subjected to a rotating barrier potential, which induces an artificial U(1) gauge field. We show that, at intermediate interactions, the persistent current response is maximal, due to a subtle interplay of effects due to the barrier, the interaction, and quantum fluctuations. These results are relevant for ongoing experiments with ultracold atomic gases on mesoscopic rings. |
| Handle: | http://hdl.handle.net/11384/57420 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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