Squeezing quadrature rotation in the acoustic band via optomechanics
Date
2016
Authors
Guccione, Giovanni
Slatyer, Harry J.
Carvalho, Andre R. R.
Buchler, Benjamin
Lam, Ping Koy
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IOP Publishing
Abstract
We examine the use of optomechanically generated squeezing to obtain a sensitivity enhancement for interferometers in the gravitational-wave band. The intrinsic dispersion characteristics of optomechanical squeezing around the mechanical frequency are able to produce squeezing at different quadratures over the spectrum, a feature required by gravitational-wave interferometers to beat the standard quantum limit over an extended frequency range. Under realistic assumptions we show that the amount of available squeezing and the intrinsic quadrature rotation may provide, compared to similar amounts of fixed-quadrature squeezing, a detection advantage. A significant challenge for this scheme, however, is the amount of excess noise that is generated in the unsqueezed quadrature at frequencies near the mechanical resonance.
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Journal of Physics B: Atomic, Molecular and Optical Physics
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Journal article
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Open Access
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