Phys. Rev. Lett. 93, 150501 (2004) [4 pages]Neutral Atom Quantum RegisterReceived 6 May 2004; published 6 October 2004 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. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.150501
DOI:
10.1103/PhysRevLett.93.150501
PACS:
03.67.Lx, 32.80.Pj, 39.25.+k, 42.50.Vk
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