Centre for Advanced Study

at the Norwegian Academy of Science and Letters

Attosecond Quantum Dynamics Beyond the Born-Oppenheimer Approximation


Future 2021/2022 Natural Sciences - Medicine - Mathematics


Inspired by recent advances in the generation of ultrashort, high-intensity laser pulses, the proposed research will investigate and develop theoretical and computational tools to plan, understand, and predict experiments probing the quantum dynamics of molecular systems at the attosecond timescale. Targeting high-accuracy simulation methods, nuclear and electronic degrees of freedom will be treated on an equal footing without invoking the Born-Oppenheimer approximation.

The main tool, which allows breaking the exponential computational cost of many-particle systems, is the time-dependent bivariational principle. The proposed reasearch is highly interdisciplinary with components ranging from mathematical analysis to software development, and involves core members from three continents with expertise in mathematics, physics, and chemistry.


  • Adamowicz, Ludwik
    Professor University of Arizona 2021/2022
  • Appel, Heiko
    Dr. Max-Planck-Institut für Struktur und Dynamik der Materie 2021/2022
  • Coriani, Sonia
    Professor Technical University of Denmark 2021/2022
  • Helgaker, Trygve
    Professor University of Oslo (UiO) 2017/2018, 2021/2022
  • Lasser, Caroline
    Professor Technical University of Munich 2021/2022
  • Palacios, Alicia
    Reader Universidad Autónoma de Madrid 2021/2022
  • Palikot, Ewa
    Dr. University of Agder (UiA) 2021/2022
  • Satō, Takeshi
    Associate Professor The University of Tokyo 2021/2022
  • Schneider, Reinhold
    Professor Technische Universität Berlin 2021/2022
  • Tellgren, Erik Ingemar
    Researcher University of Oslo (UiO) 2021/2022
  • Vacher, Morgane
    Research Fellow CNRS 2021/2022

Group leader

  • Simen Kvaal

    Title Senior Researcher Institution University of Oslo (UiO) Year at CAS 2021/2022
  • Thomas Bondo Pedersen

    Title Professor Institution University of Oslo (UiO) Year at CAS 2021/2022