Colloque - Antoine Heidmann : Listening to the Universe with Quantum Light: Quantum technologies for gravitational-wave detection
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Colloque - Antoine Heidmann : Listening to the Universe with Quantum Light: Quantum technologies for gravitational-wave detection
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概要
Pascale Senellart
Chaire annuelle Innovation technologique Liliane Bettencourt (2025-2026)
Collège de France
Année 2025-2026
Colloque : Light-based Quantum Technologies
Pascale Senellart, chaire Innovation technologique Liliane Bettencourt
Colloque - Antoine Heidmann : Listening to the Universe with Quantum Light: Quantum technologies for gravitational-wave detection
Antoine Heidmann
Résumé
Gravitational waves have opened a new way of observing the Universe, but their detection relies on laser interferometers operating at the very edge of what quantum physics allows. Quantum light — and in particular squeezed states — has become a key resource for improving detector sensitivity and overcoming quantum noise. This presentation highlights how squeezing and frequency-dependent squeezing are implemented in gravitational wave detectors such as LIGO and Virgo to enhance gravitational wave detection over a broad frequency range, and illustrates how quantum technologies developed for sensing play an essential role in fundamental research.