Skip to main content
SpringerLink
Log in

Universal linear-optical quantum device: experimental implementation

  • Published:
Journal of Russian Laser Research Aims and scope

Abstract

We report on a linear-optical realization of a universal quantum device working with polarization encoded quantum bits. It can serve as a two-qubit partial SWAP entangling gate. The same device can be used also for filtering symmetric and antisymmetric parts of the input two-photon state. Through a partial symmetrization, the universal asymmetric quantum cloning of single-photon polarization states can be achieved. All functions can be implemented in one setup by changing the classical parameters like the phase shift and attenuation only. For the characterization of the device, the reconstruction of the output state by full process tomography was performed.

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. M. A. Nielsen and I. L. Chuang, Quantum Computation and Quantum Information, Cambridge University Press, MS (2000).

    MATH  Google Scholar 

  2. J. L. O’Brien, G. J. Pryde, A. G. White, et al., Nature 426, 264 (2003).

    Article  ADS  Google Scholar 

  3. V. Scarani, M. Ziman, P. Štelmachovič, et al., Phys. Rev. Lett., 88, 097905 (2002).

    Article  ADS  Google Scholar 

  4. J. Fiurášek and N.J. Cerf, Phys. Rev. A, 77, 052308 (2008).

    Article  ADS  Google Scholar 

  5. C. K. Hong, Z. Y. Ou, and L. Mandel, Phys. Rev. Lett., 59, 2044 (1987).

    Article  ADS  Google Scholar 

  6. M. Ježek, J. Fiurášek, and Z. Hradil, Phys. Rev. A, 68, 012305 (2003).

    Article  MathSciNet  ADS  Google Scholar 

  7. A. Černoch, J. Soubusta, L. Bartůšková, et al., Phys. Rev. Lett., 100, 180501 (2008).

    Article  Google Scholar 

  8. A. Černoch, J. Soubusta, L. Bartůšková, et al., New J. Phys. 11, 023005 (2009).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Joint Laboratory of Optics of Palacký University and Institute of Physics of the Academy of Sciences of the Czech Republic, Třída 17. listopadu 50 A, 77207, Olomouc, Czech Republic

    Antonín Černoch & Jan Soubusta

  2. Department of Optics, Palacký University, Třída 17. listopadu 12, 77146, Olomouc, Czech Republic

    Miloslav Dušek & Jaromír Fiurášek

Authors
  1. Antonín Černoch
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Jan Soubusta
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Miloslav Dušek
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Jaromír Fiurášek
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Antonín Černoch.

Additional information

Manuscript submitted by the authors in English on October 25, 2009.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Černoch, A., Soubusta, J., Dušek, M. et al. Universal linear-optical quantum device: experimental implementation. J Russ Laser Res 30, 533–539 (2009). https://doi.org/10.1007/s10946-009-9089-7

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10946-009-9089-7

Keywords

Search

Navigation