6533b870fe1ef96bd12d05a4
RESEARCH PRODUCT
Optimal persistent currents for interacting bosons on a ring with a gauge field
Davide RossiniFrank W. J. HekkingFrank W. J. HekkingMarco CominottiMarco CominottiAnna MinguzziAnna MinguzziMatteo Rizzisubject
PhysicsCondensed Matter::Quantum GasesMesoscopic physicsGeneral Physics and AstronomyFOS: Physical sciencesPersistent currentRing (chemistry)Settore FIS/02 - Fisica Teorica Modelli e Metodi MatematiciTrap (computing)Quantum transportPhysics and Astronomy (all)Quantum Gases (cond-mat.quant-gas)Quantum mechanicsGauge theoryCondensed Matter - Quantum GasesQuantum fluctuationBosondescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-10-01 |