Uni-Logo Koordinator:
Prof. Dr. Jairo Sinova
Institut für Physik, SPICE
Johannes Gutenberg-Universität
Jo Gu-Uni Mainz

Theory of Condensed Matter: Hard Condensed Matter

Institut für Physik, SPICE

Dienstag, den 27.05.2014 um 10:00 Uhr s.t. im Seminar Room K, Building 2/413

Optimal persistent currents for interacting bosons on a 1D ring with a gauge field

J.-Prof Dr. Matteo Rizzi, Mainz

We study persistent currents for interacting one-dimensional (1D) 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.

Kontakt: Hjördis Pusch, hjopusch@uni-mainz.de