A gravitational wave detector operating beyond the quantum shot-noise limit: Squeezed light in application
Institut für Gravitationsphysik, Leibniz Universität Hannover, and Max-Planck-Institut für Gravitationsphysik, Callinstr. 38, 30167 Hannover, Germany
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This contribution reviews our recent progress on the generation of squeezed light , and also the recent squeezed-light enhancement of the gravitational wave detector GEO 600 . GEO 600 is currently the only GW observatory operated by the LIGO Scientific Collaboration in its search for gravitational waves. With the help of squeezed states of light it now operates with its best ever sensitivity, which not only proves the qualification of squeezed light as a key technology for future gravitational wave astronomy but also the usefulness of quantum entanglement.
© Owned by the authors, published by EDP Sciences, 2013
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