Quantum optics

Squeezing more out of LIGO

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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.

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


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Correspondence to Ulrik L. Andersen.

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Andersen, U. Squeezing more out of LIGO. Nature Photon 7, 589–590 (2013) doi:10.1038/nphoton.2013.182

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