Events at Physics
In this talk, I will discuss experimental strategies to control complex ions and molecules for which standard trapping, cooling and state manipulation methods fail. In particular, I will discuss how complex ions, such as Ti+ or Fe+, can be studied and used to place limits on the temporal variation of fundamental constants. Moreover, I will present a strategy to laser cool the diatomic molecule calcium monofluoride, a precursor to produce a degenerate dipolar quantum gas. Finally, I will show how strings of ions can be used to emulate processes relevant for transport phenomena in light harvesting processes.
I will conclude with a discussion on how to control and study two further quantum systems: electrons and aluminum chloride. Electrons can be stored in a novel two-frequency Paul trap, constituting the first step towards electron quantum computing; such a trap has, moreover, the potential to advance studies on matter-antimatter asymmetries by improving antihydrogen production. Furthermore, I will explain a laser cooling scheme for aluminum chloride, a molecule with excellent prospects for generating high phase-space density clouds at ultracold temperatures to study the physics of degenerate dipolar quantum gases.