Dynamics of F=2 spinor Bose-Einstein condensates.
Dynamics of F=2 spinor Bose-Einstein condensates.
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DOI:
10.1103/physrevlett.92.040402
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发表时间:
2003-08
影响因子:
8.6
通讯作者:
H. Schmaljohann;M. Erhard;J. Kronjäger;M. Kottke;S. V. Staa;L. Cacciapuoti;J. Arlt;K. Bongs;K. Sengstock
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文献类型:
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作者:
H. Schmaljohann;M. Erhard;J. Kronjäger;M. Kottke;S. V. Staa;L. Cacciapuoti;J. Arlt;K. Bongs;K. Sengstock
We experimentally investigate and analyze the rich dynamics in F=2 spinor Bose-Einstein condensates of 87Rb. An interplay between mean-field driven spin dynamics and hyperfine-changing losses in addition to interactions with the thermal component is observed. In particular, we measure conversion rates in the range of 10(-12) cm(3) s(-1) for spin-changing collisions within the F=2 manifold and spin-dependent loss rates in the range of 10(-13) cm(3) s(-1) for hyperfine-changing collisions. We observe polar behavior in the F=2 ground state of 87Rb, while we find the F=1 ground state to be ferromagnetic. We further see a magnetization for condensates prepared with nonzero total spin.