Josephson inductance detector for nanomechanical motion
ORAL
Abstract
We study a Josephson inductance detector suitable for detecting nanomechanical motion near quantum limit. A gate-tunable critical current of a SNS junction is employed, and its Josephson inductance is modulated by nanomechanical motion via electrostatic coupling. A microwave resonant circuit is built with the Josephson inductance, arriving at an optomechanical system with strong microwave-nanomechanics coupling. We present an estimated measurement sensitivity and show our progress in device fabrication and measurements.
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