Schrader D, Dotsenko I, Khudaverdyan M, Miroshnychenko Y, Rauschenbeutel A, Meschede D
Institut für Angewandte Physik, Universität Bonn, Wegelerstrasse 8, D-53115 Bonn, Germany.
Phys Rev Lett. 2004 Oct 8;93(15):150501. doi: 10.1103/PhysRevLett.93.150501. Epub 2004 Oct 6.
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.
我们展示了利用一串被捕获在光学偶极阱中的单个中性原子实现量子寄存器。这些原子在磁场梯度中使用微波辐射进行选择性和相干操控。我们的寻址方案具有高空间分辨率，并且在单个原子上进行的量子比特旋转对比度达到99%。在最后的读出操作中，我们分析每个原子的状态。最后，我们测量了相干时间并确定了我们寄存器的主要退相干机制。
