Improving observability of the Einstein-de Haas effect in a rubidium condensate.

The main obstacle in the experimental realization of the Einstein-de Haas effect in a Bose-Einstein condensate is the need for very precise control of the extremely small (of the order of tens of μG) external magnetic field. In this paper, we numerically study the response of a rubidium condensate to a magnetic field that is linearly dependent on time. We find a significant transfer of atoms from the initial maximally polarized state to the next Zeeman component at magnetic fields of the order of tens of milligauss. We propose an experiment in which such a time-dependent magnetic-field-based scheme could enable the observation of the Einstein-de Haas effect in a rubidium atom condensate. [ABSTRACT FROM AUTHOR]