Skip to main content
SpringerLink
Log in

Generation of entanglement from a two-mode cascade laser

  • Published:
Pramana Aims and scope Submit manuscript

Abstract

We analyse the entanglement of the light produced by a three-level laser whose cavity contains a parametric amplifier, with the cavity mode driven by the coherent light and coupled to a squeezed vacuum reservoir. Employing stochastic differential equations associated with the normal ordering resulted from the pertinent master equation, the quadrature variances and entanglement of the two-mode light are obtained and photon statistics of the two-light modes is discussed. It is found that the three-level laser generates squeezed light under certain conditions, with maximum intracavity squeezing being 89.7% below the coherent state level. We also show that the parametric amplifier enhances the mean photon number and photon number correlation.

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

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13

Similar content being viewed by others

References

  1. C W Gardiner, Phys. Rev. Lett. 56, 1917 (1986)

    Article  ADS  Google Scholar 

  2. S Qamar, S Qamar and M Suhail Zubairy, Opt. Commun. 283, 781 (2010)

    Article  ADS  Google Scholar 

  3. E Alebachew, Opt. Commun. 280, 133 (2007)

    Article  ADS  Google Scholar 

  4. S Tesfa, Phys. Rev. A 79, 063815 (2009)

    Article  ADS  Google Scholar 

  5. T Abebe, N Gemechu, K Shogile, S Hailemariam, Ch Gashu and Sh Adisu, Rom. J. Phys. 65, 107 (2020)

    Google Scholar 

  6. H Xiong, M O Scully and M S Zubairy, Phys. Rev. Lett. 94, 023601 (2005)

    Article  ADS  Google Scholar 

  7. S Qamar, M Al-Amri and M S Zubairy, Phys. Rev. A 79, 013831 (2009)

    Article  ADS  Google Scholar 

  8. Ch Gashu, E Mosisa and T Abebe, Adv. Math. Phys. 2020, 14 (2020)

    Article  Google Scholar 

  9. Ch Gashu and T Abebe, Phys. Scr. 95, 075105 (2020)

    Article  ADS  Google Scholar 

  10. S Tesfa, J. Phys. B 40, 2373 (2007)

    Article  ADS  Google Scholar 

  11. C G Feyisa, Braz. J. Phys. 50, 379 (2020)

    Article  ADS  Google Scholar 

  12. N Lu, F X Zhao and J Bergou, Phys. Rev. A 39, 5189 (1989)

    Article  ADS  Google Scholar 

  13. T Abebe and C G Feyisa, Braz. J. Phys. 50, 495 (2020)

    Article  ADS  Google Scholar 

  14. F Kassahun, Fundamental of quantum optics (Lulu, North Carolina, 2008)

    Google Scholar 

  15. G New, Introduction to nonlinear optics (Cambridge University Press, New York, 2011)

    Book  Google Scholar 

  16. W H Louisell, Quantum statistical properties of radiation (Wiley, New York, 1973)

    MATH  Google Scholar 

  17. T Abebe, N Gemechu, Ch Gashu, K Shogile, S Hailemariam and Sh Adisu, Int. J. Opt. 2020, 11 (2020)

    Article  Google Scholar 

  18. T Y Darge, PMC Phys. B 3, 1 (2010)

    Article  ADS  Google Scholar 

  19. T Abebe, Ukr. J. Phys. 63, 733 (2018)

    Article  Google Scholar 

  20. L Viola, E Knill and S Lloyd, Phys. Rev. 82, 2417 (1999)

    ADS  Google Scholar 

  21. H Jeong, J Lee and M S Kim, Phys. Rev. A 61, 052101 (2000)

    Article  ADS  Google Scholar 

  22. S Tesfa, J. Phys. B 42, 215506 (2009)

    Article  ADS  Google Scholar 

  23. A Einstein, B Podolsky and R Rosen, Phys. Rev. 47, 777 (1935)

    Article  ADS  Google Scholar 

  24. L M Duan, G Giedke, J I Cirac and P Zoller, Phys. Rev. Lett. 84, 2722 (2000)

    Article  ADS  Google Scholar 

  25. S Abdel-Khalek, Y S El-Saman and M Abdel-Aty, Pramana – J. Phys. 90: 1 (2018)

    Article  ADS  Google Scholar 

  26. M Mahjoiei, M M Golshan and H Safarif, Pramana – J. Phys. 80, 785 (2013)

    Article  ADS  Google Scholar 

  27. S Mirzaei, Pramana – J. Phys. 94: 113 (2020)

    Article  ADS  Google Scholar 

Download references

Acknowledgements

Authors are thankful to the Jimma University, College of Natural Sciences Research and Postgraduate Coordination Office, for the help, encouragement and financial support provided to them during the time they were working on this research.

Author information

Authors and Affiliations

  1. Department of Physics, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia

    Tamirat Abebe

  2. Department of Physics, Jimma University, P.O. Box 378, Jimma, Ethiopia

    Ebisa Mosisa & Chimdessa Gashu

Authors
  1. Tamirat Abebe
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Ebisa Mosisa
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Chimdessa Gashu
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Tamirat Abebe.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Abebe, T., Mosisa, E. & Gashu, C. Generation of entanglement from a two-mode cascade laser. Pramana - J Phys 95, 31 (2021). https://doi.org/10.1007/s12043-020-02049-x

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s12043-020-02049-x

Keywords

PACS Nos

Search

Navigation