Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Quantum optics

An entangled walk of photons

By harnessing the quantum nature of light and guiding the light through a network of circuits integrated in a glass chip, it is possible to mimic fundamental particles undergoing a quantum walk.

This is a preview of subscription content, access via your institution

Access options

Buy article

Get time limited or full article access on ReadCube.

$32.00

All prices are NET prices.

Figure 1: Classical and quantum walks.
Figure 2: Discrete quantum walk on a photonic chip.

Notes

  1. *This News & Views article was published online on 21 March 2012.

References

  1. Sansoni, L. et al. Phys. Rev. Lett. 108, 010502 (2012).

    ADS  Article  Google Scholar 

  2. Matthews, J. C. F. et al. preprint at arxiv.org/abs/arXiv:1106.1166v1 (2011).

  3. Aaronson, S. & Arkhipov, A. Proc. 43rd Annu. ACM Symp. Theory Comput. 333–342 (2011).

  4. Knight, P. L., Roldán, E. & Sipe, J. E. Phys. Rev. A 68, 020301(R) (2003).

    ADS  Article  Google Scholar 

  5. Peruzzo, A. et al. Science 329, 1500–1503 (2010).

    ADS  CAS  Article  Google Scholar 

  6. Omar, Y., Paunković, N., Sheridan, L. & Bose, S. Phys. Rev. A 74, 042304 (2006).

    ADS  MathSciNet  Article  Google Scholar 

  7. O'Brien, J. L., Furusawa, A. & Vučković, J. Nature Photon. 3, 687–695 (2009).

    ADS  CAS  Article  Google Scholar 

  8. Politi, A. et al. Science 320, 646–649 (2008).

    ADS  CAS  Article  Google Scholar 

  9. Shadbolt, P. et al. Nature Photon. 6, 45–49 (2012).

    ADS  CAS  Article  Google Scholar 

  10. Sansoni, L. et al. Phys. Rev. Lett. 105, 200503 (2010).

    ADS  Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Mark G. Thompson.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Matthews, J., Thompson, M. An entangled walk of photons. Nature 484, 47–48 (2012). https://doi.org/10.1038/nature11035

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/nature11035

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing