Absolute measurement of thermal noise in a resonant short-range force experiment
Absolute measurement of thermal noise in a resonant short-range force experiment
Planar, double-torsional oscillators are especially suitable for short-range macroscopic force search experiments, since they can be operated at the limit of instrumental thermal noise. As a study of this limit, we report a measurement of the noise kinetic energy of a polycrystalline tungsten oscillator in thermal equilibrium at room temperature. …