Date : Mar. 31 (Fri), 2023, 10:00～11:00
Place : On Zoom
Speaker : Martin Claassen
Affiliation : The University of Pennsylvania
Title : Quantum Geometric Light-Matter Interactions and Optical Control in Correlated and Open Quantum Systems
Abstract：
Irradiation with light provides a powerful tool to interrogate, control or induce new
quantum states of matter out of equilibrium, however a microscopic
understanding of dynamics and light-matter coupling in solids remains a
profound challenge. This talk will discuss three aspects for steering and probing
correlated topological matter, dissipative electron systems and superconductors
with light. I will show that THz radiation can grant a new quantum-geometric
handle to steer correlated quantum materials such as magic-angle twisted
bilayer graphene, whereby light dynamically dresses the Wannier functions of
interacting electrons which govern the low-energy dynamics. I will then discuss
how light can couple to open electronic quantum systems interacting with
Markovian reservoirs, to permit a spectroscopic probe of dissipation-engineered
Lindbladian band structures and exceptional points in low-dimensional systems.
Finally, I will argue that dynamical symmetry breaking with tailored light
pulses can explore metastable phases in superconductors with competing instabilities,
as a route to stabilize elusive triplet paired states.
------------------
Once you make a registration below, you will get the access information of Zoom by e-mail.
Contact : Takashi Oka（ext. 63280）
