Speaker
Description
Gateable semiconductor quantum dots (QDs) provide a versatile platform for analog quantum simulations of electronic many-body systems. In particular, smaller gate-defined QD arrays offer a natural representation of the π-electron system of small hydrocarbons. In this talk I will discuss the prospects for extending such analog QD simulators to encompass also the nuclear degrees of freedom by representing the molecular vibrational modes by single-mode microwave resonators. As an example, we study the gate-tunable energy transfer from voltage-biased double, and triple quantum dot systems to a single-mode resonator, which may be operated as gate-tunable micromasers emulating current-induced vibrational instabilities in single-molecule junctions. These nonequilibrium QD-cQED problems are treated theoretically by Lindblad master equations or perturbative Keldysh field theory methods, used here to uncover bifurcations to limit-cycle dynamics, entrainment to external drives and quantum mode synchronization.
