Active controls in interferometric detectors of gravitational waves: inertial damping of the VIRGO superattenuator
Giovanni Losurdo
Abstract
The operation of an interferometer for gravitational waves detection requires sophisticated feedback controls in many parts of the apparatus. The aim of this lecture is to introduce the types of problems to be faced in this line of research. The attention is focused on the "inertial damping" of the test mass suspension of the VIRGO interferometer (the superattenuator): it is a multidimensional local control aimed to reduce the residual motion of the suspended mirror associated to the normal modes of the suspension. Its performance is very important for the locking of the interferometer.
Create a lesson
Related papers
Spiral galaxy spacetime in extended scalar-tensor-Gauss-Bonnet gravity coupled to nonlinear electrodynamics
Pedro Cañate
Quasinormal modes of rotating black holes with ultralight scalar fields
Leif Lui, Adrian Ka-Wai Chung
Probing black holes extremality bounds with non-extensive entropies
Javier Cancino, Roberto Santos-Silva, Pablo Carlos López Vázquez et al.
Finite-Time Bounds on Conformal Vacuum Energy Relaxation in Scalar-Tensor Gravity
Yousef Bisabr
Boundary-induced corrections to the response of an Unruh-DeWitt detector outside a compact star with Robin surface conditions
Nodirbek Anarboev, Javlonbek Khasanov, Javlon Rayimbaev et al.
Primordial Graviton Entanglement in Quasicrystalline Inflation
Jiro Soda