Advantages of Coherent Feedback for Cooling Quantum Oscillators
Advantages of Coherent Feedback for Cooling Quantum Oscillators
We model the cooling of open optical and optomechanical resonators via optical feedback in the linear quadratic Gaussian setting of stochastic control theory. We show that coherent feedback control schemes, in which the resonator is embedded in an interferometer to achieve all-optical feedback, can outperform the best possible linear quadratic …