SPACE, TIME AND FUNDAMENTAL INTERACTIONS

SEISMIC NOISE REDUCTION FOR TERRESTRIAL GRAVITATIONAL WAVE DETECTORS

Frajuca C., Bortoli F. S., Magalhaes N. S.

Gravitational Wave detectors are ultimately vibration detectors. They transform the vibrations of space-time into electrical vibrations that can be measured. Seismic noise is one of these unavoidable sources of noise as the terrestrial detectors are connected to the ground, this is a constant source of noise. One way to deal with this noise is to make a suspension that isolates the experiment to the ground, at least reduces the coupling between ground and the experiment. This works shows the way to design such suspensions that does not compromise the overall performance of such detectors.