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Normal-superfluid interaction dynamics in a spinor Bose gas

J. M. McGuirk·D. M. Harber·H. J. Lewandowski·E. A. Cornell
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Abstract

Coherent behavior of spinor Bose-Einstein condensates is studied in the presence of a significant uncondensed (normal) component. Normal-superfluid exchange scattering leads to a near-perfect local alignment between the spin fields of the two components. Through this spin locking, spin-domain formation in the condensate is vastly accelerated as the spin populations in the condensate are entrained by large-amplitude spin waves in the normal component. We present data evincing the normal-superfluid spin dynamics in this regime of complicated interdependent behavior.

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J. M. McGuirk, D. M. Harber, H. J. Lewandowski, E. A. Cornell. 2003-06-23. Normal-superfluid interaction dynamics in a spinor Bose gas. https://doi.org/10.1103/physrevlett.91.150402

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