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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 11 — Nov. 1, 2013
  • pp: 2774–2780

Hyperconcentration for entanglement in two degrees of freedom

Xi-Han Li, Xiao Chen, and Zhi Zeng  »View Author Affiliations


JOSA B, Vol. 30, Issue 11, pp. 2774-2780 (2013)
http://dx.doi.org/10.1364/JOSAB.30.002774


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Abstract

We present two hyperconcentration protocols for hyperentangled states, in which entanglement occurs simultaneously in the polarization and the spatial degrees of freedom. One uses an auxiliary single photon prepared in a fixed state. The other uses two less-entangled photon pairs. In both schemes, a two photon maximally hyperentangled state can be obtained from the nonmaximally entangled states with a certain success probability. The procrustean concentration is realized by polarizing beam splitters and nondestructive quantum nondemolition detection. In both protocols the unsuccessful instances can be reconcentrated repeatedly to get a higher success probability, which makes our schemes efficient and useful in quantum information processing.

© 2013 Optical Society of America

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

History
Original Manuscript: June 10, 2013
Manuscript Accepted: August 26, 2013
Published: October 2, 2013

Citation
Xi-Han Li, Xiao Chen, and Zhi Zeng, "Hyperconcentration for entanglement in two degrees of freedom," J. Opt. Soc. Am. B 30, 2774-2780 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-11-2774

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