Skip to main content
SpringerLink
Log in

Quantum discord dynamics of two-qubit system in a quantum spin environment

  • Regular Article
  • Published:
The European Physical Journal D Aims and scope Submit manuscript

Abstract

We study the dynamics of quantum discord of two-qubit system in a quantum spin environment at finite temperature in the thermodynamics limit. Special attention is paid to the difference between the entanglement and quantum discord when considering the influences of the environment temperature and the initial system states. We show that in the same range of the physical parameters, when the system states behave no entanglement or entanglement sudden death, the quantum discord keeps nonzero. So the quantum discord is more robust than entanglement under this decoherence environment. Furthermore, we also illustrate that we can tune the parameters related to the system and the environment to suppress the decay of quantum discord.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. C.H. Bennett, D.P. Sicincenzo, Nature 404, 247 (2000)

    Article  ADS  Google Scholar 

  2. H. Feng, Chin. Sci. Bull. 55, 1758 (2010)

    Article  Google Scholar 

  3. Y.H. Wang, H.S. Song, Chin. Sci. Bull. 54, 2599 (2009)

    Article  Google Scholar 

  4. X.K. Li, J.L. Li, B. Liu, C.F. Qiao, Sci. China Phys. Mech. Astron. 54, 1471 (2011)

    Article  ADS  Google Scholar 

  5. Y.M. Di, S.P. Liu, D.D. Liu, Sci. China Phys. Mech. Astron. 53, 1868 (2010)

    Article  ADS  Google Scholar 

  6. A. Datta, S.T. Flammia, C.M. Caves, Phys. Rev. A 72, 042316 (2005)

    Article  ADS  Google Scholar 

  7. H. Ollivier, W.H. Zurek, Phys. Rev. Lett. 88, 017901 (2001)

    Article  ADS  Google Scholar 

  8. A. Datta, A. Shaji, C.M. Caves, Phys. Rev. Lett. 100, 050502 (2008)

    Article  ADS  Google Scholar 

  9. B.P. Lanyon, M. Barbieri, M.P. Almedia, A.G. White, Phys. Rev. Lett. 101, 200501 (2008)

    Article  ADS  Google Scholar 

  10. S. Luo, Phys. Rev. A 77, 042303 (2008)

    Article  ADS  Google Scholar 

  11. M. Ali, A.R.P. Rau, G. Alber, Phys. Rev. A 81, 042105 (2010)

    Article  ADS  Google Scholar 

  12. Y.X. Chen, S.W. Li, Z. Yin, Phys. Rev. A 82, 052320 (2010)

    Article  ADS  Google Scholar 

  13. A. Hassan, B. Lari, P. Joag, J. Phys. A Math. Theor. 43, 485302 (2010)

    Article  MathSciNet  Google Scholar 

  14. J.B. Yuan, L.M. Kuang, J.Q. Liao, J. Phys. B Mol. Opt. Phys. 43, 165503 (2010)

    Article  ADS  Google Scholar 

  15. X. Hao, C.L. Ma, J.Q. Sha, J. Phys. A Math. Theor. 43, 425302 (2010)

    Article  MathSciNet  ADS  Google Scholar 

  16. Z. Sun, X.M. Lu, L.J. Song, J. Phys. B Mol. Opt. Phys. 43, 215504 (2010)

    Article  ADS  Google Scholar 

  17. C.Z. Wang, C.X. Li, L.Y. Nie, J.F. Li, J. Phys. A Math. Theor. 44, 015503 (2011)

    Google Scholar 

  18. T. Werlang, G. Rigolin, Phys. Rev. A 81, 044101 (2010)

    Article  ADS  Google Scholar 

  19. T. Werlang, C. Trippe, G.A.P. Ribeiro, G. Rigolin, Phys. Rev. Lett. 105, 095702 (2010)

    Article  ADS  Google Scholar 

  20. Q. Ai, Y.D. Wang, G.L. Long, C.P. Sun, Sci. China Ser. G: Phys. Mech. Astron. 52, 1898 (2009)

    Article  ADS  Google Scholar 

  21. H. Dong, X.F. Liu, C.P. Sun, Chin. Sci. Bull. 55, 3256 (2010)

    Article  Google Scholar 

  22. Q. Ai, T. Shi, G.L. Long, C.P. Sun, Phys. Rev. A 78, 022327 (2008)

    Article  ADS  Google Scholar 

  23. T. Yu, J.H. Eberly, Phys. Rev. Lett. 93, 140404 (2004)

    Article  ADS  Google Scholar 

  24. T. Werlang, S. Souza, F.F. Fanchini, C.J. Villas Boas, Phys. Rev. A 80, 024103 (2009)

    Article  ADS  Google Scholar 

  25. F.F. Fanchini, T. Werlang, C.A. Brasil, L.G.E. Arruda, A.O. Caldeira, Phys. Rev. A 81, 052107 (2010)

    Article  ADS  Google Scholar 

  26. A. Ferraro, L. Aolita, D. Cavalcanti, F.M. Cucchietti, Phys. Rev. A 81, 014101 (2010)

    Article  Google Scholar 

  27. B.Q. Liu, B. Shao, J. Zou, Phys. Rev. A 82, 062119 (2010)

    Article  ADS  Google Scholar 

  28. J.S. Jin, C.S. Yu, P. Pei, H.S. Song, J. Opt. Soc. Am. B 27, 1799 (2010)

    Article  ADS  Google Scholar 

  29. X.Z. Yuan, H.S. Goan, K.D. Zhu, Phys. Rev. A 75, 045331 (2007)

    ADS  Google Scholar 

  30. H.P. Breuer, D. Burgarth, F. Petruccione, Phys. Rev. B 70, 045323 (2004)

    Article  ADS  Google Scholar 

  31. M. Frasca, Ann. Phys. 313, 26 (2004)

    Article  ADS  MATH  Google Scholar 

  32. S. Paganelli, F. de Pasquale, S.M. Giampaolo, Phys. Rev. A 66, 052317 (2002)

    Article  ADS  Google Scholar 

  33. M. Lucamarini, S. Paganelli, S. Mancini, Phys. Rev. A 69, 062308 (2004)

    Article  ADS  Google Scholar 

  34. W.K. Wootters, Phys. Rev. Lett. 80, 2245 (1998)

    Article  ADS  Google Scholar 

  35. B. Groisman, S. Popescu, A. Winter, Phys. Rev. A 72, 032317 (2005)

    Article  MathSciNet  ADS  Google Scholar 

  36. J.L. Guo, H.S. Song, Opt. Commun. 282, 4637 (2009)

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. College of Physics and Electronic Information Science, Tianjin Normal University, Tianjin, 300387, P.R. China

    J. L. Guo

  2. School of Science, Hebei University of Technology, Tianjin, 300401, P.R. China

    Y. J. Mi

  3. School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, 116024, P.R. China

    H. S. Song

Authors
  1. J. L. Guo
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Y. J. Mi
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. H. S. Song
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to J. L. Guo.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Guo, J.L., Mi, Y.J. & Song, H.S. Quantum discord dynamics of two-qubit system in a quantum spin environment. Eur. Phys. J. D 66, 24 (2012). https://doi.org/10.1140/epjd/e2011-20242-9

Download citation

  • Received:

  • Revised:

  • Published:

  • DOI: https://doi.org/10.1140/epjd/e2011-20242-9

Keywords

Search

Navigation