2000 character limit reached
Intrinsic Kerr amplification for microwave electromechanics (2402.00802v2)
Published 1 Feb 2024 in cond-mat.mes-hall
Abstract: Electromechanical transduction gain of 21 dB is realized in a micro-cantilever resonant force sensor operated in the unresolved-sideband regime. Strain-dependent kinetic inductance weakly couples cantilever motion to a superconducting nonlinear resonant circuit. A single pump generates motional sidebands and parametrically amplifies them via four-wave mixing. We study the gain and added noise, and we analyze potential benefits of this integrated amplification process in the context force sensitivity.