Skip to main content

Thank you for visiting 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.


Making ions cooler

Cooling of trapped ions with a neutral buffer gas makes the study of atom–ion hybrid systems possible in the quantum regime. The new record low achieved opens the door to numerous opportunities, including full control over the atom–ion interactions.

This is a preview of subscription content

Access options

Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.

Fig. 1: Low-energy atom–ion collisions.


  1. Coté, R. & Dalgarno, A. Phys. Rev. A 62, 012709 (2000).

    ADS  Article  Google Scholar 

  2. Feldker, T. et al. Nat. Phys. (2020).

  3. Grier, A. T., Cetina, M., Oručević, F. & Vuletić, V. Phys. Rev. Lett. 102, 223201 (2009).

    ADS  Article  Google Scholar 

  4. Zipkes, C., Palzer, S., Sias, C. & Köhl, M. Nature 464, 388–391 (2010).

    ADS  Article  Google Scholar 

  5. Idziaszek, Z., Calarco, T., Julienne, P. S. & Simoni, A. Phys. Rev. A 79, 010702 (2009).

    ADS  Article  Google Scholar 

  6. Cetina, M., Grier, A. T. & Vuletić, V. Phys. Rev. Lett. 109, 253201 (2012).

    ADS  Article  Google Scholar 

  7. Schneider, Ch., Enderlein, M., Huber, T. & Schaetz, T. Nat. Photon 4, 772–775 (2010).

    ADS  Article  Google Scholar 

  8. Schmid, S., Härter, A. & Hecker Denshclag, J. Phys. Rev. Lett. 105, 133202 (2010).

    ADS  Article  Google Scholar 

  9. Sikorsky, T., Meir, Z., Ben-Shlomi, R., Akerman, N. & Ozeri, R. Nat. Commun. 9, 920 (2018).

    ADS  Article  Google Scholar 

  10. Zipkes, C., Palzer, S., Ratschbacher, L., Sias, C. & Köhl, M. Phys. Rev. Lett. 105, 133201 (2010).

    ADS  Article  Google Scholar 

Download references

Author information

Authors and Affiliations


Corresponding author

Correspondence to Carlo Sias.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Sias, C. Making ions cooler. Nat. Phys. 16, 378–379 (2020).

Download citation

  • Published:

  • Issue Date:

  • DOI:

Further reading


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