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Fast Quantum State Control of a Single Trapped Neutral Atom

Abstract : We demonstrate the initialisation, read-out and high-speed manipulation of a qubit stored in a single 87 Rb atom trapped in a submicron-size optical tweezer. Single qubit rotations are performed on a sub-100 ns time scale using two-photon Raman transitions. Using the ``spin-echo'' technique, we measure an irreversible dephasing time of 34 ms. The read-out of the single atom qubit is at the quantum projection noise limit when averaging up to 1000 individual events.
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https://hal.archives-ouvertes.fr/hal-00096007
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Submitted on : Tuesday, April 24, 2007 - 7:39:01 PM
Last modification on : Saturday, June 25, 2022 - 11:06:54 AM
Long-term archiving on: : Tuesday, September 21, 2010 - 1:28:52 PM

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Matthew P. A. Jones, Jérôme Beugnon, Alpha Gaëtan, Junxiang Zhang, Gaëtan Messin, et al.. Fast Quantum State Control of a Single Trapped Neutral Atom. Physical Review A, American Physical Society, 2007, 75, pp.040301(R). ⟨10.1103/PhysRevA.75.040301⟩. ⟨hal-00096007v2⟩

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