Thermal noise and optical cooling
Thermal noise and optical quantum noise place fundamental limits on the displacement sensitivity of interferometric gravitational wave detectors. Projects such as Advanced LIGO employ a wide range of techniques to reduce thermal noise and use very high optical powers to reduce quantum noise. Thermal noise is Brownian motion caused by the thermal energy in each mode of oscillation. It is fundamentally linked with mechanical loss via the fluctuation-dissipation theorem. The thermal energy of,...[Show more]
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