Direct approach for the fluctuation-dissipation theorem under nonequilibrium steady-state conditions
Direct approach for the fluctuation-dissipation theorem under nonequilibrium steady-state conditions
The test mass suspensions of cryogenic gravitational-wave detectors such as the KAGRA project are tasked with extracting the heat deposited on the optics. Thus these suspensions have a non-uniform temperature, requiring the calculation of thermal noise in non-equilibrium conditions. While it is not possible to describe the whole suspension system …