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Entanglement of Atomic Qubits Using an Optical Frequency Comb

D. Hayes, D. N. Matsukevich, P. Maunz, D. Hucul, Q. Quraishi, S. Olmschenk, W. Campbell, J. Mizrahi, C. Senko, and C. Monroe
Phys. Rev. Lett. 104, 140501 – Published 5 April 2010
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Abstract

We demonstrate the use of an optical frequency comb to coherently control and entangle atomic qubits. A train of off-resonant ultrafast laser pulses is used to efficiently and coherently transfer population between electronic and vibrational states of trapped atomic ions and implement an entangling quantum logic gate with high fidelity. This technique can be extended to the high field regime where operations can be performed faster than the trap frequency. This general approach can be applied to more complex quantum systems, such as large collections of interacting atoms or molecules.

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  • Received 13 January 2010

DOI:https://doi.org/10.1103/PhysRevLett.104.140501

©2010 American Physical Society

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Combing a qubit

Published 5 April 2010

A trick for modulating optical frequency combs will enable more flexible control over trapped-ion qubits.

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Authors & Affiliations

D. Hayes*, D. N. Matsukevich, P. Maunz, D. Hucul, Q. Quraishi, S. Olmschenk, W. Campbell, J. Mizrahi, C. Senko, and C. Monroe

  • Joint Quantum Institute, Department of Physics, University of Maryland and National Institute of Standards and Technology, College Park, Maryland 20742 USA

  • *dhayes12@umd.edu

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Issue

Vol. 104, Iss. 14 — 9 April 2010

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