English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We consider a two-dimensional weakly interacting ultracold Bose gas whoseconstituents are two-level atoms. We study the effects of a syntheticdensity-dependent gauge field that arises from laser-matter coupling in theadiabatic limit with a laser configuration such that the single-particlezero-order vector potential corresponds to a constant synthetic magnetic field.We find a new exotic type of current non-linearity in the Gross-Pitaevskiiequation which affects the dynamics of the order parameter of the condensate.We investigate the rotational properties of this system, focusing in particularon the physical conditions that make the nucleation of a quantized vortex inthe system energetically favourable with respect to the non rotating solution.We point out that two different physical interpretations can be given to thisnew non linearity: firstly it can be seen as a local modification of the meanfield coupling constant, whose value depends on the angular momentum of thecondensate. Secondly, it can be interpreted as a density modulated angularvelocity given to the cloud. Looking at the problem from both of theseviewpoints, we analyze the physical conditions that make a single vortex stateenergetically favourable. In the Thomas-Fermi limit, we show that the effect ofthe new nonlinearity is to induce a rotation to the condensate, where thetransition from non-rotating to rotating states depends on the density of thecloud.

Quantized vortices in interacting gauge theories