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Robust state preparation of a single trapped ion by adiabatic passage

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We report adiabatic passage experiments with a single trapped  [image omitted] ion. By applying a frequency-chirped laser pulse with a Gaussian amplitude envelope, we reach a transfer efficiency of 0.99(1) on an optical transition from the electronic ground state S1/2 to the metastable state D5/2. This transfer method is shown to be insensitive to the accurate setting of laser parameters, and therefore is suitable as a robust tool for ion-based quantum computing.
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Document Type: Research Article

Affiliations: 1: ?, National University of Ireland, Kildare, Ireland 2: Institut für Experimentalphysik, Universität Innsbruck, Innsbruck, Austria 3: Institut für Quanteninformationsverarbeitung, Universität Ulm, Ulm, Germany

Publication date: July 1, 2007

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