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.

Atomic physics

Polar exploration

Magnetic monopoles — particles carrying a single magnetic charge — have never been seen. Analogues of these entities have now been produced in an ultracold cloud of rubidium atoms. See Letter p.657

This is a preview of subscription content

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.

Figure 1: Magnetic differences.


  1. 1

    Ray, M. W., Ruokokoski, E., Kandel, S., Möttönen, M. & Hall, D. S. Nature 505, 657–660 (2014).

    ADS  CAS  Article  Google Scholar 

  2. 2

    Dirac, P. A. M. Proc. R. Soc. Lond. A 133, 60–72 (1931).

    ADS  Article  Google Scholar 

  3. 3

    Milton, K. A. Rep. Prog. Phys. 69, 1637–1711 (2006).

    ADS  CAS  Article  Google Scholar 

  4. 4

    Pinfold, J. L. Radiat. Measure. 44, 834–839 (2009).

    ADS  CAS  Article  Google Scholar 

  5. 5

    Adrián-Martínez, S. et al. Astropart. Phys. 35, 634–640 (2012).

    ADS  Article  Google Scholar 

  6. 6

    Abbasi, R. et al. Phys. Rev. D 87, 022001 (2013).

    ADS  Article  Google Scholar 

  7. 7

    Fetter, A. L. Rev. Mod. Phys. 81, 647–691 (2009).

    ADS  CAS  Article  Google Scholar 

  8. 8

    Dalibard, J., Gerbier, F., Juzeliūnas, G. & Öhberg, P. Rev. Mod. Phys. 83, 1523–1543 (2011).

    ADS  CAS  Article  Google Scholar 

  9. 9

    Bloch, I., Dalibard, J. & Nascimbène, S. Nature Phys. 8, 267–276 (2012).

    ADS  CAS  Article  Google Scholar 

  10. 10

    Möttönen, M., Pietilä, V. & Virtanen, S. M. M. Phys. Rev. Lett. 99, 250406 (2007).

    ADS  Article  Google Scholar 

  11. 11

    Roncaglia, M., Rizzi, M. & Dalibard, J. Sci. Rep. 1, 43 (2011).

    ADS  CAS  Article  Google Scholar 

Download references

Author information



Corresponding author

Correspondence to Lindsay J. LeBlanc.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

LeBlanc, L. Polar exploration. Nature 505, 627–628 (2014).

Download citation


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