Babak Seradjeh: "Floquet Topology and Nonequilibrium Dynamics in Quantum Matter"
Periodic driving can generate new interactions in quantum systems that are absent in the static system. Such “Floquet engineering” has been employed and demonstrated in various platforms, such as cold atoms in optical lattices, trapped ions, photonic devices, and solid-state systems, promising exquisite in-situ control for realizing and probing novel quantum phases of matter. In this presentation, I will present our recent theoretical works in this area: first, on using twisted light to generate and control multiple topological phases in graphene; second, on the steady-state population of driven systems weakly coupled to a fermionic bath. I will use the latter to show a “Josephson Floquet sum rule” for driven superconductors.
