Dynamics of F=2 spinor Bose-Einstein condensates.

Dynamics of F=2 spinor Bose-Einstein condensates.
复制标题

DOI:
10.1103/physrevlett.92.040402
复制
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
H. Schmaljohann;M. Erhard;J. Kronjäger;M. Kottke;S. V. Staa;L. Cacciapuoti;J. Arlt;K. Bongs;K. Sengstock
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
H. Schmaljohann;M. Erhard;J. Kronjäger;M. Kottke;S. V. Staa;L. Cacciapuoti;J. Arlt;K. Bongs;K. Sengstock

文献摘要

被引文献

相似文献

我们通过实验研究并分析了 87Rb F=2 旋量玻色-爱因斯坦凝聚态的丰富动力学。除了与热组件的相互作用之外,还观察到平均场驱动的自旋动力学和超精细变化损耗之间的相互作用。特别是,我们测量了 F=2 流形内自旋变化碰撞在 10(-12) cm(3) s(-1) 范围内的转化率,以及超精细变化碰撞在 10(-13) cm(3) s(-1) 范围内的自旋相关损失率。我们观察到 87Rb 在 F=2 基态下的极性行为,同时我们发现 F=1 基态是铁磁性的。我们进一步看到以非零总自旋制备的凝聚态的磁化。
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.