Materials Engineering with Light beyond Floquet
This event is part of the Biophysics/Condensed Matter Seminar Series.
I will discuss our recent efforts to understand and predict ways of engineering quantum materials with light, beyond the paradigm of Floquet engineering with continuous driving fields. First I will show results for a cavity quantum-electrodynamical modification of electron-phonon coupling and superconductivity in monolayer FeSe/SrTiO , in which the pure vacuum fluctuations of a confined photon field are used. Then I will present a study on ultrafast optical control of chiral Majorana modes in topological superconductors , in which we present a simple double-pumppulse switching protocol purely on symmetry grounds, which implies that it works both in the highfrequency („Floquet“) and low-frequency limits.