Barry Barish Created 2026-10-24 Updated 2026-11-05
Barry Barish helped turn LIGO from an interferometer proposal into an operating large-scale gravitational wave observatory. He directed its construction and early operation and established the broader LIGO Scientific Collaboration.[ref]
The scientific architecture combines sensitive laser interferometers at widely separated sites. A candidate astronomical signal must be distinguished from local disturbances, using its relative arrival times and its consistency with the detectors' responses. This made instrumental performance, calibration and cross-site comparison inseparable from the eventual measurement.[ref]