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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. 6 — Jun. 1, 2012
  • pp: 1456–1464

Entanglement and nonclassicality of photon-added two-mode squeezed thermal state

Li-Yun Hu, Fang Jia, and Zhi-Ming Zhang  »View Author Affiliations


JOSA B, Vol. 29, Issue 6, pp. 1456-1464 (2012)
http://dx.doi.org/10.1364/JOSAB.29.001456


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Abstract

We introduce a kind of entangled state—a photon-addition two-mode squeezed thermal state (TMSTS)—by adding photons to each mode of the TMSTS. Using the P-representation of thermal state, the compact expression of the normalization factor is derived, a Jacobi polynomial. The nonclassicality is investigated by exploring especially the negativity of Wigner function. The entanglement is discussed by using Shchukin–Vogel criteria. It is shown that the photon addition to the TMSTS may be more effective for the entanglement enhancement than the photon subtraction from the TMSTS. In addition, the quantum teleportation is also examined, which shows that symmetrical photon-added TMSTS may be more useful for quantum teleportation than the nonsymmetric case.

© 2012 Optical Society of America

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(270.5290) Quantum optics : Photon statistics

ToC Category:
Quantum Optics

History
Original Manuscript: March 6, 2012
Manuscript Accepted: March 27, 2012
Published: May 30, 2012

Citation
Li-Yun Hu, Fang Jia, and Zhi-Ming Zhang, "Entanglement and nonclassicality of photon-added two-mode squeezed thermal state," J. Opt. Soc. Am. B 29, 1456-1464 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-6-1456

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