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Thermal nonlinearities in a nanomechanical oscillator
A room-temperature motion sensor with record sensitivity is created using a levitating silica nanoparticle. Feedback cooling to reduce the noise arising from Brownian motion enables a detector that is perhaps even sensitive enough to detect non-Newtonian gravity-like forces.
- Jan Gieseler
- , Lukas Novotny
- & Romain Quidant