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A neutral atom quantum register

D. Schrader·I. Dotsenko·M. Khudaverdyan·Y. Miroshnychenko·A. Rauschenbeutel·D. Meschede
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Abstract

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 read-out operation we analyze each individual atomic state. Finally, we have measured the coherence time and identified the predominant dephasing mechanism for our register.

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D. Schrader, I. Dotsenko, M. Khudaverdyan, Y. Miroshnychenko, A. Rauschenbeutel, D. Meschede. 2004-09-06. A neutral atom quantum register. https://doi.org/10.1103/physrevlett.93.150501

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