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.

Optimal persistent currents for interacting bosons on a ring with a gauge field

ROSSINI, DAVIDE;
2014-01-01

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.
Settore FIS/02 - Fisica Teorica, Modelli e Metodi Matematici
File in questo prodotto:
File Dimensione Formato  
main_text10_3.pdf

accesso aperto

Descrizione: Articolo Principale
Tipologia: Submitted version (pre-print)
Licenza: Sola lettura
Dimensione 1.09 MB
Formato Adobe PDF
1.09 MB Adobe PDF Visualizza/Apri
PhysRevLett.113.025301.pdf

Accesso chiuso

Tipologia: Published version
Licenza: Non pubblico
Dimensione 369.65 kB
Formato Adobe PDF
369.65 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/57420
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 63
  • ???jsp.display-item.citation.isi??? 61
social impact