Interaction Control and Bright Solitons in Coherently Coupled Bose-Einstein Condensates

Sanz, J.; Frölian, A.; Chisholm, C. S.; Cabrera, C. R. und Tarruell, L. (2022): Interaction Control and Bright Solitons in Coherently Coupled Bose-Einstein Condensates. In: Physical Review Letters, Bd. 128, Nr. 1, 13201

Abstract

We demonstrate fast control of the interatomic interactions in a Bose-Einstein condensate by coherently coupling two atomic states with intra-and interstate 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.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 0031-9007
• Sprache: Englisch