Entanglement of atomic qubits using an optical frequency comb.

  title={Entanglement of atomic qubits using an optical frequency comb.},
  author={David Hayes and Dzmitry Matsukevich and Peter Maunz and David Hucul and Qudsia Quraishi and Steven Matthew Olmschenk and Wesley C. Campbell and Jonathan Mizrahi and Crystal Senko and Christopher R. Monroe},
  journal={Physical review letters},
  volume={104 14},
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… 

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Phys. Rev. Lett

  • Phys. Rev. Lett
  • 1999

Phys. Rev. A

  • Phys. Rev. A
  • 2009

Fortschr. Phys

  • Fortschr. Phys
  • 2000

Phys. Rev. A

  • Phys. Rev. A
  • 2005

Phys. Rev. A

  • Phys. Rev. A
  • 1981


  • Rev. Lett. 93, 100502
  • 2004


  • Rev. Lett. 91, 157901
  • 2003

Phys. Rev. Lett

  • Phys. Rev. Lett
  • 2003

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  • Rev. Mod. Phys
  • 2003

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