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Using a new set of several football-length tubes, LIGO has managed to surpass the quantum limit enabling it to detect more black hole and neutron star collisions.Get a daily digest of the latest news in tech, science, and technology, delivered right to your mailbox. Subscribe now.
The process has been likened to squeezing a balloon. If you squeeze one end, the other end expands. This is similar to how squeezing light works: reducing noise in one property increases it in another . Previously, LIGO's squeezing made measurements better for high-frequency gravitational waves but worse for low frequencies. Now, they've improved the technology to squeeze in a way that benefits both high and low frequencies.
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