Spin coupling between cold atoms and the thermal fluctuations of a metal surface.
Spin coupling between cold atoms and the thermal fluctuations of a metal surface.
复制标题
冷原子与金属表面热波动之间的自旋耦合。
DOI：
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发表时间：
2003
影响因子：
8.6
通讯作者：
E. Hinds
中科院分区：
文献类型：
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作者：
Matthew Jones;C. Vale;D. Sahagun;B. Hall;E. Hinds
我们描述了一个实验中，玻色-爱因斯坦凝聚和冷原子云举行的微观磁阱附近的室温金属线直径500微米。原子留在微阱中的寿命是在距离金属表面27微米的距离范围内测量的。我们观察到的损失的原子从微陷阱由于自旋翻转。这些是由表面附近磁场的射频热波动引起的，正如预测的那样，但以前没有观察到。
We describe an experiment in which Bose-Einstein condensates and cold atom clouds are held by a microscopic magnetic trap near a room-temperature metal wire 500 microm in diameter. The lifetime for atoms to remain in the microtrap is measured over a range of distances down to 27 microm from the surface of the metal. We observe the loss of atoms from the microtrap due to spin flips. These are induced by radio-frequency thermal fluctuations of the magnetic field near the surface, as predicted but not previously observed.