LIGO, the Laser Interferometer Gravitational-Wave Observatory, has achieved a remarkable advancement in sensitivity by employing a technique known as frequency-dependent squeezing. This innovative approach enables LIGO to transcend the quantum limitations that previously hindered its measurements. A substantial 60% increase in the detection rate of cataclysmic events, like the collision of black holes and neutron stars, extending our cosmic vision. Unlike previous quantum constraints, this method amplifies gravitational wave signals, surpassing the omnipresent quantum noise. The future of astrophysical discoveries with LIGO seems promising, as we venture further into the gravitational Universe.
Source: https://journals.aps.org/prx/accepted/2507bK60Qb81c00f36d98e151e24c0cc4de92490e