Neutral atom quantum register.
Neutral atom quantum register.
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DOI：
10.1103/physrevlett.93.150501
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发表时间：
2004-09
影响因子：
8.6
通讯作者：
D. Schrader;I. Dotsenko;M. Khudaverdyan;Y. Miroshnychenko;A. Rauschenbeutel;D. Meschede
中科院分区：
文献类型：
--
作者：
D. Schrader;I. Dotsenko;M. Khudaverdyan;Y. Miroshnychenko;A. Rauschenbeutel;D. Meschede
我们演示了利用一串被捕获在光学偶极子阱中的单个中性原子来实现量子寄存器。利用微波辐射在磁场梯度中选择性地、相干地操纵原子。我们的寻址方案具有高空间分辨率，单个原子上的量子比特旋转具有99%的对比度。在最后的读出操作中，我们分析每个单独的原子状态。最后，我们测量了相干时间，并确定了该寄存器的主要减相机制。
We demonstrate the realization of a quantum register using a string of single neutral atoms which are trapped in an optical dipole trap. The atoms are selectively and coherently manipulated in a magnetic field gradient using microwave radiation. Our addressing scheme operates with a high spatial resolution, and qubit rotations on individual atoms are performed with 99% contrast. In a final readout operation we analyze each individual atomic state. Finally, we have measured the coherence time and identified the predominant dephasing mechanism for our register.