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Entanglement of atomic qubits using an optical frequency comb

  • Author(s): Hayes, D
  • Matsukevich, DN
  • Maunz, P
  • Hucul, D
  • Quraishi, Q
  • Olmschenk, S
  • Campbell, W
  • Mizrahi, J
  • Senko, C
  • Monroe, C
  • et al.
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. © 2010 The American Physical Society.

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