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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. 26, Iss. 7 — Jul. 1, 2009
  • pp: 1289–1294

Sudden death and birth of entanglement effects for Kerr-nonlinear coupler

A. Kowalewska-Kudłaszyk and W. Leoński  »View Author Affiliations


JOSA B, Vol. 26, Issue 7, pp. 1289-1294 (2009)
http://dx.doi.org/10.1364/JOSAB.26.001289


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Abstract

We analyze the entanglement dynamics in a nonlinear Kerr-like coupler interacting with external environment. Whenever the reservoir is in a thermal vacuum state, the entanglement (measured by concurrence for a two-qubit system) exhibits regular oscillations of decreasing amplitude. In contrast, for thermal reservoirs we can observe dark periods in concurrence oscillations (which can be called a sudden death of the entanglement) and the entanglement rebuild (which can be named the sudden birth of entanglement). We show that these features can be observed when we deal with two-qubit system as well as qubit–qutrit system.

© 2009 Optical Society of America

OCIS Codes
(270.2500) Quantum optics : Fluctuations, relaxations, and noise
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

History
Original Manuscript: February 20, 2009
Manuscript Accepted: April 19, 2009
Published: June 8, 2009

Citation
A. Kowalewska-Kudłaszyk and W. Leoński, "Sudden death and birth of entanglement effects for Kerr-nonlinear coupler," J. Opt. Soc. Am. B 26, 1289-1294 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-7-1289


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References

  1. K. Życzkowski, P. Horodecki, M. Horodecki, and R. Horodecki, “Dynamics of quantum entanglement,” Phys. Rev. A 65, 012101 (2001). [CrossRef]
  2. T. Yu and J. H. Eberly, “Finite-time disentanglement via spontaneous emission,” Phys. Rev. Lett. 93, 140404 (2004). [CrossRef] [PubMed]
  3. Z. Ficek and R. Tanaś, “Dark periods and revivals of entanglement in a two-qubit system,” Phys. Rev. A 74, 024304 (2006). [CrossRef]
  4. Z. Ficek and R. Tanaś, “Delayed sudden birth of entanglement,” Phys. Rev. A 77, 054301 (2008). [CrossRef]
  5. M. Ikram, F. Li, and M. S. Zubairy, “Disentanglement in a two-qubit system subjected to dissipation environments,” Phys. Rev. A 75, 062336 (2007). [CrossRef]
  6. A. Al-Qasimi and D. F. V. James, “Sudden death of entanglement at finite temperature,” Phys. Rev. A 77, 012117 (2008). [CrossRef]
  7. J. P. Paz and A. J. Roncaglia, “Dynamics of entanglement between two oscillators in the same environment,” Phys. Rev. Lett. 100, 220401 (2008). [CrossRef] [PubMed]
  8. A. Serafini, F. Illuminati, M. G. A. Paris, and S. De Siena, “Entanglement and purity of two-mode Gaussian states in noisy channels,” Phys. Rev. A 69, 022318 (2004). [CrossRef]
  9. S. Maniscalco, S. Olivares, and M. G. A. Paris, “Entanglement oscillations in non-Markovian quantum channels,” Phys. Rev. A 75, 062119 (2007). [CrossRef]
  10. F. Benatti and R. Floreanini, “Entangling oscillators through environment noise,” J. Phys. A 39, 2689-2699 (2006). [CrossRef]
  11. A. Kowalewska-Kudłaszyk and W. Leoński, “Finite-dimensional states and entanglement generation for a nonlinear coupler,” Phys. Rev. A 73, 042318 (2006). [CrossRef]
  12. W. K. Wootters, “Entanglement of formation of an arbitrary state of two qubits,” Phys. Rev. Lett. 80, 2245-2248 (1998). [CrossRef]
  13. S. Li and J. Xu, “Stationary entanglement and nonlocality of two qubits or qutrits collectively interacting with the thermal environment: The role of Bell singlet state,” arXiv:quant-ph/0505216v2.

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