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Simplified optical configuration for a sloshing-speedmeter-enhanced gravitational wave detector

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arxiv 1909.04185 v2 pith:YOA3VIDG submitted 2019-09-09 gr-qc quant-ph

classification gr-qcquant-ph
keywords cavityconfigurationdetectorgravitationalmichelsonopticalsloshingwave
verification ladder T0 review T1 audit T2 compute T3 formal
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We propose a new optical configuration for an interferometric gravitational wave detector based on the speedmeter concept using a sloshing cavity. Speedmeters provide an inherently better quantum-noise limited sensitivity at low frequencies than the currently used Michelson interferometers. We show that a practical sloshing cavity can be added relatively simply to an existing dual-recycled Michelson interferometer such as Advanced LIGO.

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