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Energetic Quantum Limit in Large-Scale Interferometers

Vladimir B. Braginsky, Mikhail L. Gorodetsky, Farid Ya. Khalili, Kip S. Thorne

gr-qcarXiv:gr-qc/9907057

Abstract

For each optical topology of an interferometric gravitational wave detector, quantum mechanics dictates a minimum optical power (the ``energetic quantum limit'') to achieve a given sensitivity. For standard topologies, when one seeks to beat the standard quantum limit by a substantial factor, the energetic quantum limit becomes impossibly large. Intracavity readout schemes may do so with manageable optical powers.

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