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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 16 — Aug. 3, 2009
  • pp: 14298–14311

N-qubit W state of spatially separated single molecule magnets

Xin-You Lü, Pei-Jun Song, Ji-Bing Liu, and Xiaoxue Yang  »View Author Affiliations

Optics Express, Vol. 17, Issue 16, pp. 14298-14311 (2009)

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A simple scheme is proposed to generate a N-qubit W state of spatially separated single molecule magnets (SMM) in a cavity-fiber-cavity system. In the present scheme, the framework consisting of entangled qubits can be expediently designed according to our needs. By quantitatively discussing the case of N=4, we show that the effects of SMM’s spontaneous decay and photon leakage out of fiber can be suppressed in our scheme due to the presence of virtual excited processes in SMM and fiber modes. Moreover, we also show that the present scheme is robust with respect to some deviations of experimental parameters, and as a result, the present investigation provides a research clue for realizing multi-partite entanglement between distant SMMs solid-state nanostructures, which may result in a substantial impact on the progress of multi-node quantum information network.

© 2009 Optical Society of America

OCIS Codes
(270.5580) Quantum optics : Quantum electrodynamics
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

Original Manuscript: May 26, 2009
Revised Manuscript: July 6, 2009
Manuscript Accepted: July 9, 2009
Published: July 31, 2009

Xin-You Lü, Pei-Jun Song, Ji-Bing Liu, and Xiaoxue Yang, "N-qubitW state of spatially separated single molecule magnets," Opt. Express 17, 14298-14311 (2009)

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