Abstract

A quantum device for measuring two-body interactions, scalar magnetic fields and rotations is proposed using a Bose-Einstein condensate (BEC) in a ring trap. We consider an imbalanced superposition of orbital angular momentum modes with opposite winding numbers for which a rotating minimal atomic density line appears. We derive an analytical model relating the angular frequency of the minimal density line rotation to the strength of the nonlinear atom-atom interactions and the difference between the populations of the counter-propagating modes. Additionally, we propose a full experimental protocol based on direct fluorescence imaging of the BEC that allows to measure all the quantities involved in the analytical model and use the system for sensing purposes.

Authors
G. Pelegrí, V. Ahufinger, i J. Mompart
Citation Key
279
COinS Data

Date Published
2018-12-27 03:43
Issue
10
Pagination
103001
Journal
New Journal of Physics
URL
http://stacks.iop.org/1367-2630/20/i=10/a=103001
Volume
20
Year of Publication
2018