Physics Seminars
Light-Matter Control of Quantum Materials: From Floquet states to cavity engineering
Speaker: Prof. Michael A. Sentef (University of Bremen, Max Planck Institute for the Structure and Dynamics of Matter, Hamburg)
Date: Wednesday 21 February 2024
Time: 15:00
Venue: Zoom
Advances in time-resolved pump-probe spectroscopies have enabled us to follow the microscopic dynamics of quantum materials on femtosecond time scales. This gives us a glimpse into the inner workings of how complex, emergent functionalities of quantum many-body systems develop on ultrafast time scales or react to external forces. The ultimate dream of the community is to use light as a tuning parameter to create new states of matter on demand with designed properties and new functionalities, perhaps not achievable by other means. In this talk I will provide an overview of the field, highlighting both ultrafast control of quantum materials [1] and the prospect of controlling materials with quantum light in cavities [2]. [1] de la Torre, Kennes, Claassen, Gerber, McIver, MAS, Colloquium: Nonthermal pathways to ultrafast control in quantum materials, Rev. Mod. Phys. 93, 041002 (2021) https://journals.aps.org/rmp/abstract/10.1103/RevModPhys.93.041002 [2] Schlawin, Kennes, MAS, Appl. Phys. Rev. 9, 011312 (2022), Cavity quantum materials, https://pubs.aip.org/aip/apr/article/9/1/011312/2835409/Cavity-quantum-materials