Theory of Resonances in Floquet Scattering

Feshbach resonances are a common tool in order to control the scattering length in ultracold quantum gases. Using time-periodic driving one is able to induce novel resonances that are fully controllable by the parameters of the drive. In this talk we provide a deeper understanding of these driving induced resonances by introducing a theory of Floquet resonances. Our method is capable of describing resonance positions and widths for general inter-particle potentials. We show our results exemplarily in the case of a driven pseudopotential.