New Physics in Driven Quantum Materials

by Andrea Cavalleri (Max Planck Institute for the Structure and Dynamics of Matter, Hamburg GERMANY, and Department of Physics, University of Oxford)

Tuesday 12 Apr 2022, 16:00 → 18:00 Europe/Rome

Aula Conversi (Dip. di Fisica - Edificio G. Marconi)

I will discuss how intense and coherent electromagnetic radiation at Tera-Hertz and mid-infrared frequencies can be used to drive complex solids. Collective excitations are driven nonlinearly, leading to coupling amongst otherwise virtually non-interacting normal modes of the material. Driving gives rise to non-thermal states with unconventional properties, and sometimes with emergent order. Interesting examples involve the nonlinear control of the crystal lattice, used to induce magnetic order, ferroelectricity and non-equilibrium superconductivity at high temperatures.

Link zoom: https://uniroma1.zoom.us/j/82330282429?pwd=MktKdmlkSUxxdXlraFhKSHhJTDZnUT09