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)

In his Ph.D. thesis, Elisabeth Hoffmann (now Trommer) was realizing superconducting circuit QED experiments to establish a superconducting quantum swithch. In cavity quantum electrodynamics the interaction between light and matter is studied using superconducting quantum circuits coupled to superconducting microwave resonators. Elisabeth Hoffmann showed that a superconducting qubit between two resonators allows for the realization of a tunable coupling depending on the qubit state, and thus the realization of a quantum switch. In her thesis, she presented the theoretical modeling, the fabrication techniques and the spectroscopic characterization of thesuperconducting quantum switch.

She was leaving WMI in June 2012 to join attocube systems AG as a Sales Engineer (meanwhile: Senior Technical Sales).