Preprint
Sep 2026
Observing and evading quantum back-action on a kilogram-scale oscillator
Continuous quantum displacement measurements are fundamentally limited by a trade-off between readout imprecision and measurement back-action, constrained by the Heisenberg uncertainty principle. In the Laser Interferometric Gravitational-Wave Observatory (LIGO), these two quantum noise components dominate much of the...
Begüm Kabagöz, E. Oelker, Dhruva Ganapathy et al.
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