Date
April 20 (Wed) at 15:30 - 17:00, 2022 (JST)
Speaker
  • Dr. Michael Sentef (Emmy Noether Research Group Leader, Max Planck Institute for the Structure and Dynamics of Matter, Germany)
Venue
  • via Zoom
Language
English
Host
Hidetoshi Taya

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 superconductivity through phonon driving in an organic kappa salt [2] and its possible theoretical explanation via dynamical Hubbard U [3]. I will then highlight some recent theoretical and experimental progress in cavity quantum materials [4], 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.

References

  1. A. de la Torre, D. M. Kennes, M. Claassen, S. Gerber, J. W. McIver, M. A. Sentef, Colloquium: Nonthermal pathways to ultrafast control in quantum materials, Rev. Mod. Phys. 93, 041002 (2021), doi: 10.1103/RevModPhys.93.041002
  2. M. Buzzi, D. Nicoletti, M. Fechner, N. Tancogne-Dejean, M. A. Sentef, A. Georges, M. Dressel, A. Henderson, T. Siegrist, J. A. Schlueter, K. Miyagawa, K. Kanoda, M.-S. Nam, A. Ardavan, J. Coulthard, J. Tindall, F. Schlawin, D. Jaksch, A. Cavalleri, Photo-molecular high temperature superconductivity, Phys. Rev. X 10, 031028 (2020), doi: 10.1103/PhysRevX.10.031028
  3. J. Tindall, F. Schlawin, M. Buzzi, D. Nicoletti, J. R. Coulthard, H. Gao, A. Cavalleri, M. A. Sentef, D. Jaksch, Dynamical Superconductivity in a Frustrated Many-Body System, Phys. Rev. Lett. 125, 137001 (2020), doi: 10.1103/PhysRevLett.125.137001
  4. Frank Schlawin, Dante M. Kennes, Michael A. Sentef, Cavity Quantum Materials, Applied Physics Reviews Reviews 9, 011312 (2022), doi: 10.1063/5.0083825

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