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Quantum enhanced kHz gravitational wave detector with internal squeezing

Adya, Vaishali; Yap, Min Jet; Toyra, Daniel; McRae, Terry; Altin, Paul; Sarre, Lauren; Meijerink, Mart; Kijbunchoo, Nutsinee; Slagmolen, Bram; Ward, Robert; McClelland, David


We propose adding a nonlinear element to a long signal recycling cavity to enhance the high-frequency sensitivity (900 Hz–5 kHz) of a kilometer-scale interferometric gravitational wave detector. Using numbers for absorption and scattering losses in the detector consistent with advanced LIGO+, we demonstrate a factor of 3.5 improvement in quantum noise limited strain sensitivity in the kHz regime. Such a configuration is robust to internal losses and reduces the requirement on the amount of...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: Classical and Quantum Gravity
DOI: 10.1088/1361-6382/ab7615
Access Rights: Open Access


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