Tunable Coupling to a Mechanical Oscillator Circuit Using a Coherent Feedback Network
Tunable Coupling to a Mechanical Oscillator Circuit Using a Coherent Feedback Network
We demonstrate a fully cryogenic microwave feedback network composed of modular superconducting devices connected by transmission lines and designed to control a mechanical oscillator coupled to one of the devices. The network features an electromechanical device and a tunable controller that coherently receives, processes and feeds back continuous microwave signals …