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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 29, Iss. 5 — May. 1, 2012
  • pp: 901–905

Tunable optimal quantum cloning machines with trapped atoms

Wei Xiong and Liu Ye  »View Author Affiliations


JOSA B, Vol. 29, Issue 5, pp. 901-905 (2012)
http://dx.doi.org/10.1364/JOSAB.29.000901


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Abstract

We propose a scheme to realize tunable optimal quantum cloning machines with trapped atoms. Through selecting a pairing of Raman transitions and choosing suitable parameters of the external fields, we can not only realize an optimal symmetric (asymmetric) universal quantum cloning machine and phase-covariant cloning machine, but also an optimal symmetric economical phase-covariant cloning machine. Additionally, the atomic excited states and photonic states can be adiabatically eliminated. In our scheme, the quantum cloning machine can copy the information from one trapped atom to arbitrary two distant trapped atoms, which is significant to quantum communication and quantum computation.

© 2012 Optical Society of America

OCIS Codes
(020.5580) Atomic and molecular physics : Quantum electrodynamics
(270.5580) Quantum optics : Quantum electrodynamics
(020.1335) Atomic and molecular physics : Atom optics
(060.5565) Fiber optics and optical communications : Quantum communications
(270.5565) Quantum optics : Quantum communications

ToC Category:
Quantum Optics

History
Original Manuscript: September 19, 2011
Revised Manuscript: December 19, 2011
Manuscript Accepted: December 23, 2011
Published: April 6, 2012

Citation
Wei Xiong and Liu Ye, "Tunable optimal quantum cloning machines with trapped atoms," J. Opt. Soc. Am. B 29, 901-905 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-5-901

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