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

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• 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

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• 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) <br> <br>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)<br><br>G. Meneghini, S. Brem, E. Malic, Ultrafast phonon‐driven charge transfer in van der Waals heterostructures, Natural Sciences 2, e20220014 (2022)<br><br>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)<br><br>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

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• 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).<br><br>P. Cudazzo, "First-principles description of the exciton-phonon interaction: A cumulant approach", Phys. Rev. B 102, 045136 (2020).<br><br>P. Cudazzo, "Dynamical effects on photoluminescence spectra from first principles: A many-body Green's function approach", Phys. Rev. B 108, 165101 (2023).<br><br>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

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• 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).<br>[2] H.-Y. Chen, D. Sangalli, M. Bernardi, First-Principles Ultrafast Exciton Dynamics and Time-Domain Spectroscopies.<br>Phys. Rev. Res. 4, 043203 (2022).<br>[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)<br>[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.<br>Comput. Phys. Commun. 264, 107970 (2021).

  Presenters

  • Marco Bernardi

    Caltech

  Authors

  • Marco Bernardi

    Caltech

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