Elisabeth Hoffmann was member of the Gross group at WMI as a master and Ph.D. student between 2007 and 2012.

Master Thesis: Superconducting Hybrid Rings for Homodyne Detections of Microwave Signals (2008)
Ph.D. Thesis: Experiments on Two-Resonator Circuit Quantum Electrodynamics: A superconducting Quantum Switch (2013)

Elisabeth Hoffmann (now Trommer) was realizing superconducting circuit QED experiments to establish a superconducting quantum swithch. She was leaving WMI in June 2012 to join attocube systems AG as a Sales Engineer (meanwhile: Senior Technical Sales).