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Phys. Rev. A 76, 052314 (2007) [9 pages]

Manipulation and detection of a trapped Yb+ hyperfine qubit

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S. Olmschenk1,2,*, K. C. Younge1, D. L. Moehring1, D. N. Matsukevich1,2, P. Maunz1,2, and C. Monroe1,2
1FOCUS Center and Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
2JQI and Department of Physics, University of Maryland, College Park, Maryland 20742, USA

Received 4 August 2007; published 19 November 2007

We demonstrate the use of trapped ytterbium ions as quantum bits for quantum information processing. We implement fast, efficient state preparation and state detection of the first-order magnetic field-insensitive hyperfine levels of 171Yb+, with a measured coherence time of 2.5 s. The high efficiency and high fidelity of these operations is accomplished through the stabilization and frequency modulation of relevant laser sources.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.76.052314
DOI:
10.1103/PhysRevA.76.052314
PACS:
03.67.Lx, 32.80.Pj, 32.10.Fn, 32.70.Cs

*smolms@umd.edu

 
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