Physicists Figure out how to Make Gravitational Wave Detectors “Hear” 6x More Universe

Gravitational wave detectors are limited by fundamental quantum noise – an incessant “hum” that they cannot ever remove. But now physicists have recently improved a technique, called “squeezing”, that can allow the next generation of detectors to double their sensitivity.

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Tau.Neutrino said:

Physicists Figure out how to Make Gravitational Wave Detectors “Hear” 6x More Universe

Gravitational wave detectors are limited by fundamental quantum noise – an incessant “hum” that they cannot ever remove. But now physicists have recently improved a technique, called “squeezing”, that can allow the next generation of detectors to double their sensitivity.

more…

> But physicists are clever folks, and they’ve come up with a way to trick the uncertainty principle by “squeezing” light. In essence, the trick works by carefully preparing the light source, making the phase measurement more precise (which is what we use to detect the gravitational waves) with an associated cost in the measurement of the brightness (which we don’t care about so much). This way, the overall uncertainty principle is obeyed while getting more precision out of the observations.

It’s true that phase is being used to detect gravitational waves. But being pedantic, they’re looking for rising pitch.