Interaction control and bright solitons in coherently-coupled Bose-Einstein condensates
arXiv:1912.06041 · doi:10.1103/PhysRevLett.128.013201
Abstract
We demonstrate fast control of the interatomic interactions in a Bose-Einstein condensate by coherently coupling two atomic states with intra- and inter-state scattering lengths of opposite signs. We measure the elastic and inelastic scattering properties of the system and find good agreement with a theoretical model describing the interactions between dressed states. In the attractive regime, we observe the formation of bright solitons formed by dressed-state atoms. Finally, we study the response of the system to an interaction quench from repulsive to attractive values, and observe how the resulting modulational instability develops into a bright soliton train.
arXiv comment6 pages, 4 figures
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