XVI ET Symposium 2026

Transformer-based seismic prediction and feedforward control for active isolation of suspended optics in the Einstein Telescope

Not scheduled

1m

poster Poster Session Poster Session

Speaker

Kyrill Emanuel Blümer (Institut für Kernphysik Münster, AG Kappes)

Description

Seismic noise at frequencies below 10 Hz is a fundamental sensitivity limit for ground-based gravitational wave detectors. The Einstein Telescope's underground location reduces
but does not eliminate low-frequency ground motion, making active seismic isolation of the suspended test masses essential. We present a two-stage learned pipeline for seismic noise cancellation:
a predictive model that forecasts future ground motion, and a feedforward controller that computes actuator forces to cancel disturbances transmitted through the mirror suspension.