Cold atom trap with zero residual magnetic field: the ac magneto-optical trap.
Cold atom trap with zero residual magnetic field: the ac magneto-optical trap.
复制标题
零残余磁场的冷原子陷阱：交流磁光陷阱。
DOI：
10.1103/physrevlett.101.173201
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发表时间：
2008
影响因子：
8.6
通讯作者：
A. Murray
中科院分区：
文献类型：
--
作者：
M. Harvey;A. Murray
介绍了一种利用交流电流产生磁场B，并利用阻尼激光场实现高速偏振开关的原子阱。这种组合产生了与标准磁光阱（MOT）一样有效的阱，其优点是平均B场为零。因此，在周围的导电元件中没有感应出净电流，并且发现由交流MOT产生的B场比传统MOT快300倍以上地关断。因此，可以进行新的实验，包括带电粒子探测或检测冷目标系综。
A novel atom trap is described using alternating current to generate the magnetic B field, together with high speed polarization switching of the damping laser field. This combination produces a trap as effective as a standard magneto-optical trap (MOT), with the advantage that the average B field is zero. No net current is hence induced in surrounding conductive elements, and the B field produced by the ac MOT is found to switch off >300 times faster than a conventional MOT. New experiments can hence be performed, including charged particle probing or detection of the cold target ensemble.