Strongest squeezing ever seen in a gravitational-wave detector

Potsdam, Germany (SPX) Jan 28, 2021

German-British instrument mitigates quantum noise effects better than any gravitational-wave detector before. Gravitational waves cause tiny length changes in the kilometer-size detectors of the international network (GEO600, KAGRA, LIGO, Virgo). The instruments use laser light to detect these effects and are so sensitive that they are fundamentally limited by quantum mechanics. This limit manif