Christoph Zollitsch was member of the Gross group at WMI as a Master and Ph.D. Student between 2011 and 2015.

Master Thesis: Ferromagnetic Resonance at Low Temperatures (2011)
Ph.D. Thesis: Single Excitation Transfer in the Quantum Regime: A Spin-Based Solid State Approach (2016)

In his Ph.D. thesis, Christoph Zollitsch was studying magnetization dynamics at low temperatures and the realization of solid-state based quantum spin systems. To this end, he aimed at the realisation of strong coupling between a superconducting microwave resonator and an ensemble of phosphorus donor spins, contained in an isotopically purified silicon host crystal. He investigated the dynamical properties of the coupled system at mK temperatures and ultra-low microwave powers. From his pulsed microwave spectroscopy experiments, he could extract the relaxation and coherence times of the coupled system. He found that the hybrid system's coherence time is enhanced compared to the uncoupled spin system.  

He left WMI in July 2015 to join the Quantum Spin Dynamics group of the University College London as a postdoctoral researcher.