Exciton-Phonon Interactions and Ultrafast Dynamics: Theory and Simulations

Presentations

• Many-body effects on exciton dynamics and nonlinear optics in low-dimensional materials

  ORAL · Invited

  March 17, 2025, 6:00 PM – March 17, 2025, 6:36 PM

  Publication: T

  Presenters

  • Diana Y Qiu

    Yale University

  Authors

  • Diana Y Qiu

    Yale University

  View abstract →

• First Principles Calculations of Temperature Dependent Exciton Binding Energies and Dissociation Rates in Semiconductors and Insulators

  ORAL · Invited

  March 17, 2025, 6:36 PM – March 17, 2025, 7:12 PM

  Presenters

  • Marina R Filip

    University of Oxford

  Authors

  • Marina R Filip

    University of Oxford

  View abstract →

• Charge transfer excitons in atomically thin semiconductors

  ORAL · Invited

  March 17, 2025, 7:12 PM – March 17, 2025, 7:48 PM

  Publication: D. Schmitt, G. Meneghini, E. Malic, S. Hofmann, M. Reutzel, S. Mathias, et al., Formation of moiré interlayer excitons in space and time, Nature 608, 499 (2022)
  
  J. Bange, G. Meneghini, E. Malic, M. Reutzel, S. Mathias, et al., Probing electron-hole Coulomb correlations in the exciton landscape of a twisted semiconductor heterostructure, Sci. Adv. 10, eadi1323 (2024)
  
  G. Meneghini, S. Brem, E. Malic, Ultrafast phonon‐driven charge transfer in van der Waals heterostructures, Natural Sciences 2, e20220014 (2022)
  
  R. Rosati, I. Paradisanos, A. Turchanin, B. Urbaszek, E. Malic, et al. Interface engineering of charge-transfer excitons in 2D lateral heterostructures, Nature Communications 14, 2438 (2023)
  
  Polarization and charge-separation of moir\'e excitons in van der Waals heterostructures, J. Hagel, S. Brem, E. Malic, Nano Letters (2024)

  Presenters

  • Ermin Malic

    University of Marburg

  Authors

  • Ermin Malic

    University of Marburg

  View abstract →

• Cumulant method for the exciton-phonon coupling

  ORAL · Invited

  March 17, 2025, 7:48 PM – March 17, 2025, 8:24 PM

  Publication: P. Cudazzo and L. Reining, "Correlation satellites in optical and loss spectra", Phys. Rev. Res. 2, 012032 (2020).
  
  P. Cudazzo, "First-principles description of the exciton-phonon interaction: A cumulant approach", Phys. Rev. B 102, 045136 (2020).
  
  P. Cudazzo, "Dynamical effects on photoluminescence spectra from first principles: A many-body Green's function approach", Phys. Rev. B 108, 165101 (2023).
  
  G. Marini, M. Calandra, and P. Cudazzo, "Optical absorption and photoluminescence of single layer boron nitride from a first principles cumulant approach", Nano Lett. 24, 6017 (2024).

  Presenters

  • Giovanni Marini

    Istituto Italiano di Tecnologia

  Authors

  • Pierluigi Cudazzo

    University of Trento

  • Giovanni Marini

    Istituto Italiano di Tecnologia

  View abstract →

• First-Principles Exciton-Phonon and Magnon-Phonon Interactions: Theory, Code, Applications, and New Directions

  ORAL · Invited

  March 17, 2025, 8:24 PM – March 17, 2025, 9:00 PM

  Publication: [1] H.-Y. Chen, D. Sangalli, M. Bernardi, Exciton-Phonon Interaction and Relaxation Times from First Principles. Phys. Rev. Lett. 125, 107401 (2020).
  [2] H.-Y. Chen, D. Sangalli, M. Bernardi, First-Principles Ultrafast Exciton Dynamics and Time-Domain Spectroscopies.
  Phys. Rev. Res. 4, 043203 (2022).
  [3] K. Le, A. Esquembre-Kucukalic, H.-Y. Chen, I. Maliyov, D. Sangalli, A. Molina-Sanchez, M. Bernardi, Magnon-phonon interactions from first principles. arXiv (2024)
  [4] J.-J. Zhou, J. Park, I.-T. Lu, I. Maliyov, X. Tong, M. Bernardi. PERTURBO: A software package for ab initio electron-phonon interactions, charge transport and ultrafast dynamics.
  Comput. Phys. Commun. 264, 107970 (2021).

  Presenters

  • Marco Bernardi

    Caltech

  Authors

  • Marco Bernardi

    Caltech

  View abstract →