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.

Quantum optics

Squeezing more out of LIGO

Further sensitivity improvements are required before advanced optical interferometers will be able to measure gravitational waves. A team has now shown that introducing quantum squeezing of light may help to detect these elusive waves.

Your institute does not have access to this article

Access options

Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.

Figure 1
Figure 2: Schematic of a Michelson interferometer with injected squeezed light.


  1. Aasi, J. et al. Nature Photon. 7, 613–619 (2013).

    ADS  Article  Google Scholar 

  2. Harris, G. I., Andersen, U. L., Knittel, J. & Bowen W. P. Phys. Rev. A 85, 061802 (2012).

    ADS  Article  Google Scholar 

  3. Caves, C. M. Phys. Rev. D 23, 1693–1708 (1981).

    ADS  Article  Google Scholar 

  4. McKenzie, K., Shaddock, D. A., McClelland, D. E., Buchler, B. C. & Lam, P. K. Phys. Rev. Lett. 88, 231102 (2002).

    ADS  Article  Google Scholar 

  5. Goda, K. et al. Nature Phys. 4, 472–476 (2008).

    ADS  Article  Google Scholar 

  6. Abadie, J. et al. Nature Phys. 7, 962–965 (2011).

    ADS  Article  Google Scholar 

Download references

Author information

Authors and Affiliations


Corresponding author

Correspondence to Ulrik L. Andersen.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Andersen, U. Squeezing more out of LIGO. Nature Photon 7, 589–590 (2013).

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