Excited-State Dynamics: Exciton-Phonon Interactions and Beyond

Presentations

• Ab Initio Theory of Exciton Polarons and Self-Trapped Excitons

  ORAL · Invited

  March 17, 2026, 8:00 AM – March 17, 2026, 8:36 AM

  Publication: 1. Z. Dai and F. Giustino. PNAS 121, e2414203121 (2024)
  2. Z. Dai, C. Lian, J. Lafuente-Bartolome, F. Giustino. Phys. Rev. Lett. 132, 036902 (2024)
  3. Z. Dai, C. Lian, J. Lafuente-Bartolome, F. Giustino. Phys. Rev. B 109, 045202 (2024)

  Presenters

  • Zhenbang Dai

    • University of Texas at Austin

  Authors

  • Zhenbang Dai

    • University of Texas at Austin

  • Chao Lian

    • University of Texas at Austin

  • Jon Lafuente-Bartolome

    • jon.lafuente@ehu.eus

  • Feliciano Giustino

    • University of Texas at Austin

  View abstract →

• Lippmann–Schwinger Approach to Electron–Phonon Binding in Solid-State Materials

  ORAL

  March 17, 2026, 8:36 AM – March 17, 2026, 8:48 AM

  Presenters

  • REDA AHNOUCH

    • Wright state university

  Authors

  • REDA AHNOUCH

    • Wright state university

  • Mohammadreza Hadizadeh

    • Central State University

  • Hong Huang

    • Wright State University

  View abstract →

• First-Principles Insights into Phonon Polaritons and Dielectric Response in Polar Materials

  ORAL

  March 17, 2026, 8:48 AM – March 17, 2026, 9:00 AM

  Presenters

  • Deliang Bao

    • Hampton University

  Authors

  • Deliang Bao

    • Hampton University

  • Ryan A Kowalski

    • Vanderbilt University

  • Harrison A Walker

    • Vanderbilt University

  • Thomas E Beechem

    • Purdue University

  • Jordan A Hachtel

    • Oak Ridge National Laboratory

  • Alexander Paarmann

    • Fritz Haber Institute

  • Joshua D Caldwell

    • Vanderbilt University

  • Sokrates T Pantelides

    • Vanderbilt University

  View abstract →

• New Empirical models for excitonic polarons induced by multiple polar modes and abinitio approach to optoelectronic properties in locally disordered 3D halide perovskites

  ORAL

  March 17, 2026, 9:00 AM – March 17, 2026, 9:12 AM

  Publication: J Even, S Thebaud, A Rajan Kshirsagar, Z Xu, L Pedesseau, M Zacharias, Claudine Katan. Theoretical approaches to Fröhlich excitonic polarons in polar semiconductors. https://arxiv.org/abs/2505.07406
  
  M Zacharias and J Even. Local Structural Disorder in Crystalline Materials, ACS Energy Letters, October 22, 2025, 10.1021/acsenergylett.5c02706

  Presenters

  • Jacky Even

    • INSA Rennes FOTON CNRS
    • INSA Rennes

  Authors

  • Jacky Even

    • INSA Rennes FOTON CNRS
    • INSA Rennes

  • Simon Thébaud

    • INSA Rennes

  • Aseem kshirsagar

    • Univ Rennes, ENSCR, CNRS, ISCR

  • Zeli Xu

    • INSA Rennes

  • George Volonakis

    • University Rennes I
    • Univ Rennes, ENSCR, CNRS, ISCR

  • Laurent PEDESSEAU

    • INSA Rennes

  • Marios Zacharias

    • INSA Rennes

  • Claudine Katan

    • Univ Rennes, ENSCR, CNRS, ISCR

  View abstract →

• Anharmonic Electron-Phonon Coupling in Materials: From Equilibrium to the Ultrafast Regime

  ORAL · Invited

  March 17, 2026, 9:12 AM – March 17, 2026, 9:48 AM

  Presenters

  • Marios Zacharias

    • The Cyprus Institute

  Authors

  • Marios Zacharias

    • The Cyprus Institute

  • Jacky Even

    • INSA Rennes FOTON CNRS
    • INSA Rennes

  • Feliciano Giustino

    • University of Texas at Austin

  • Claudine Katan

    • University Rennes I

  • Fabio Caruso

    • University of Kiel

  • George Volonakis

    • University Rennes I
    • Univ Rennes, ENSCR, CNRS, ISCR

  View abstract →

• Spontaneous Phonon-Enabled Exciton Dissociation in Semiconductors

  ORAL

  March 17, 2026, 9:48 AM – March 17, 2026, 10:00 AM

  Presenters

  • Rahoul Banerjee Ghosh

    • University of California, Berkeley

  Authors

  • Rahoul Banerjee Ghosh

    • University of California, Berkeley

  • Stephen E Gant

    • University of California, Berkeley

  • Jeffrey B Neaton

    • Lawrence Berkeley National Laboratory
    • Dept. of Physics, UC-Berkeley; Materials Sciences Division, LBNL; Kavli Energy NanoSciences Institute at Berkeley
    • University of California, Berkeley and Lawrence Berkeley National Laboratory

  View abstract →

• Vibrationally Resolved Optical Spectra of Point Defects from Particle-Particle Random Phase Approximation

  ORAL

  March 17, 2026, 10:00 AM – March 17, 2026, 10:12 AM

  Presenters

  • Sander Cohen-Janes

    • Yale University

  Authors

  • Sander Cohen-Janes

    • Yale University

  • Chaoqun Zhang

    • Johns Hopkins University

  • JIACHEN LI

    • Yale University

  • Tianyu Zhu

    • Yale University

  View abstract →

• Comparison between the special displacement method and quasi-degenerate perturbation theory for calculating phonon-assisted optical properties

  ORAL

  March 17, 2026, 10:12 AM – March 17, 2026, 10:24 AM

  Presenters

  • Adam R Denchfield

    • Oden Institute

  Authors

  • Adam R Denchfield

    • Oden Institute

  • Sabyasachi Tiwari

    • University of Texas at Austin

  • Feliciano Giustino

    • University of Texas at Austin

  View abstract →

• Coherent lattice control from electron-phonon interaction

  ORAL

  March 17, 2026, 10:24 AM – March 17, 2026, 10:36 AM

  Presenters

  • Christoph Emeis

    • University Kiel

  Authors

  • Christoph Emeis

    • University Kiel

  • Fabio Caruso

    • University of Kiel

  View abstract →

• Ab initio calculation of effects of exciton-phonon couplings to the optical linewidth and exciton lifetime

  ORAL

  March 17, 2026, 10:36 AM – March 17, 2026, 10:48 AM

  Presenters

  • Yifan Xie

    • UC Berkeley

  Authors

  • Yifan Xie

    • UC Berkeley

  • Shang Ren

    • University of California, Berkeley

  • Xiaoxun Gong

    • Department of Physics, University of California, Berkeley, CA, USA; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
    • University of California, Berkeley

  • Steven G Louie

    • University of California, Berkeley
    • Department of Physics, University of California, Berkeley, CA, USA; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
    • Department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory

  View abstract →

• First-principles determination of exciton dephasing via time-dependent adiabatic GW approach

  ORAL

  March 17, 2026, 10:48 AM – March 17, 2026, 11:00 AM

  Presenters

  • Shang Ren

    • University of California, Berkeley

  Authors

  • Shang Ren

    • University of California, Berkeley

  • Yifan Xie

    • UC Berkeley

  • Xiaoxun Gong

    • Department of Physics, University of California, Berkeley, CA, USA; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
    • University of California, Berkeley

  • Steven G Louie

    • University of California, Berkeley
    • Department of Physics, University of California, Berkeley, CA, USA; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
    • Department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory

  View abstract →