Kerr enhanced magnetomechanics - From self oscillation to state generation

Magnetomechanical systems offer a unique platform for novel quantum technologies because of the strong tunable interactions and on-chip architecture. Such devices incorporate circuit-engineered nonlinearities that can lead to rich dynamical nonlinear phenomena such as limit cycles and chaos.
In our work, we present a theoretical study of a nonlinear magnetomechanical system that exhibits self sustained oscillations. Our analysis shows that the Kerr nonlinearity of our superconducting microwave circuit reduces the threshold for detecting such nonlinear dynamics by four orders of magnitude compared to a linear cavity.
We are also analysing how this intrinsic nonlinearity can facilitate the generation of nonclassical states. To date, there have been proposals to generate non-classical states in optomechanical systems in the single-photon coupling regime, which is experimentally challenging. Here, our aim is to identify potential pathways for non-classical state generation where the inherent cavity nonlinearity eases the requirements for state generation.