Dynamical localization of spin dynamics in a spin-1 Bose condensate via modulation of spin interaction

ORAL

Abstract

Spin mixing dynamics in a spin-1 Bose-Einstein condensate can be localized by a temporal modulation of spin exchange interaction, which is tunable via optical Feshbach resonance. Adopting techniques from coherent control, we demonstrate the localization/freezing of spin mixing dynamics, and the suppression of the intrinsic dynamic instability and spontaneous spin domain formation in a ferromagnetically interacting condensate of $^{87}$Rb atoms. Different control schemes are also discussed.

*W. Z. acknowledges support by the 973 Program Grant No. 2009CB929300 and the National Natural Science Foundation of China Grant No. 10904017.

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Authors

  • Wenxian Zhang

    • Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China

  • Bo Sun

    • Department of Physics, Auburn University, Auburn, Alabama 36849, USA

  • M.S. Chapman

    • School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA

  • L. You

    • School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA