Florian Mintert Abstract

Florian Mintert

Abstract

We discuss the dynamics of interacting spins in the presence of external driving. This driving can be either monochromatic, a short pulse or a time-dependent, shaped pulse. In the case of monochromatic driving we identify conditions for which driving can induce essentially perfect stationary entanglement in weakly interacting systems. A short pulse can create strong entanglement only as transient phenomenon, but the entanglement that is established after a short pulse has created an excitation provides us with insight in the interference mechanisms that dominate the propagation of this excitation. In the context of many-particle quantum walks and light-harvesting complexes we discuss the interplay of transport and interference. To conclude, we discuss how optimal control might explain how many-body entanglement can persist even despite strong environment coupling.