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TT: Fachverband Tiefe Temperaturen

TT 36: Focus Session: Ultrafast Spin, Lattice and Charge Dynamics of Solids

TT 36.2: Invited Talk

Friday, September 9, 2022, 10:00–10:30, H10

New opportunities for light-matter control of quantum materials — •Michael Sentef — Max Planck Institute for the Structure and Dynamics of Matter, Hamburg

In this talk I will discuss recent progress in controlling and inducing materials properties with light [1]. Specifically I will discuss recent experiments showing light-induced superconducting-like optical responses through phonon driving in an organic kappa salt [2], and their possible theoretical explanation via dynamical Hubbard U [3]. I will then highlight some recent theoretical and experimental progress in cavity quantum materials [4,5], where the classical laser as a driving field of light-induced properties is replaced by quantum fluctuations of light in confined geometries. Ideas and open questions for future work will be outlined.

[1] Rev. Mod. Phys. 93, 041002 (2021)

[2] Phys. Rev. X 10, 031028 (2020)

[3] Phys. Rev. Lett. 125, 137001 (2020)

[4] Applied Physics Reviews 9, 011312 (2022)

[5] J. Phys. Mater. 5, 024006 (2022)