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Optics Letters

Optics Letters


  • Vol. 36, Iss. 7 — Apr. 1, 2011
  • pp: 1275–1277

High-fidelity local addressing of trapped ions and atoms by composite sequences of laser pulses

Svetoslav S. Ivanov and Nikolay V. Vitanov  »View Author Affiliations

Optics Letters, Vol. 36, Issue 7, pp. 1275-1277 (2011)

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A vital requirement for a quantum computer is the ability to locally address, with high fidelity, any of its qubits without affecting their neighbors. We propose an addressing method using composite sequences of laser pulses that dramatically reduces the addressing error in a lattice of closely spaced atoms or ions and at the same time significantly enhances the robustness of qubit manipulations. To this end, we design novel (to our knowledge) high- fidelity composite pulses for the most important single-qubit operations. In principle, this method allows one to beat the diffraction limit, for only atoms situated in a small spatial region around the center of the laser beam are excited, well within the laser beam waist.

© 2011 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(270.1670) Quantum optics : Coherent optical effects
(300.3700) Spectroscopy : Linewidth
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

Original Manuscript: December 23, 2010
Revised Manuscript: February 22, 2011
Manuscript Accepted: March 7, 2011
Published: March 31, 2011

Svetoslav S. Ivanov and Nikolay V. Vitanov, "High-fidelity local addressing of trapped ions and atoms by composite sequences of laser pulses," Opt. Lett. 36, 1275-1277 (2011)

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