Trapped Bose-Einstein condensates in synthetic magnetic field

TL;DR

This paper investigates the properties of Bose-Einstein condensates in synthetic magnetic fields, comparing them with rotating traps, and explores how interactions influence vortex formation and the applicability of Feynman's rule.

Contribution

It provides a numerical analysis of condensates in synthetic magnetic fields, demonstrating how interactions can facilitate vortex lattice formation and validating Feynman's rule in this context.

Findings

Adding large angular momentum is more challenging in synthetic fields than in rotating traps.

Strengthening atomic interactions helps generate vortex-lattice-like structures.

Feynman's rule remains valid for condensates in synthetic magnetic fields.

Abstract

Rotating properties of Bose-Einstein condensates in synthetic magnetic field are studied by numerically solving the Gross-Pitaevskii equation and compared with condensates confined in the rotating trap. It seems that it is more difficult to add large angular momentum to condensates spined up by the synthetic magnetic field than by the rotating trap. However, strengthening the repulsive interaction between atoms is an effective and realizable route to overcome this problem and can at least generate vortex-lattice-like structures. In addition, the validity of the Feynman rule for condensates in synthetic magnetic field is verified.