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.

PHOTONICS

Topology puts solitons in the corner

Nonlinearity and topology are both linked to symmetries, but what happens when the two are combined is not a trivial question. In a nonlinear photonic higher-order topological insulator, solitons localize on the corners together with the topological modes.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

Fig. 1: Topological soliton formation.

References

  1. 1.

    Kirsch, M. S. et al. Nat. Phys. https://doi.org/10.1038/s41567-021-01275-3 (2021).

  2. 2.

    Hasan, M. Z. & Kane, C. L. Rev. Mod. Phys. 82, 3045–3067 (2010).

    ADS  Article  Google Scholar 

  3. 3.

    Benalcazar, W. A., Bernevig, B. A. & Hughes, T. L. Science 357, 61–66 (2017).

    ADS  Article  Google Scholar 

  4. 4.

    Ablowitz, M. J., Curtis, C. W. & Ma, Y.-P. 2D Mater. 2, 024003 (2015).

    Article  Google Scholar 

  5. 5.

    Mukherjee, S. & Rechtsman, M. C. Science 368, 856–859 (2020).

    ADS  Article  Google Scholar 

  6. 6.

    Maczewsky, L. J. et al. Science 370, 701–704 (2020).

    ADS  MathSciNet  Article  Google Scholar 

  7. 7.

    Roushan, P. et al. Nat. Phys. 13, 146–151 (2017).

    Article  Google Scholar 

  8. 8.

    Salerno, G., Palumbo, G., Goldman, N. & Di Liberto, M. Phys. Rev. Res. 2, 013348 (2020).

    Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to Grazia Salerno.

Ethics declarations

Competing interests

The author declares no competing interests.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Salerno, G. Topology puts solitons in the corner. Nat. Phys. 17, 980–981 (2021). https://doi.org/10.1038/s41567-021-01282-4

Download citation

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