Browsing Kjemisk institutt by Author "Adamowicz, Ludwik"

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  • A Quantum Definition of Molecular Structure 
    Lang, Lucas; Cezar, Henrique Musseli; Adamowicz, Ludwik; Pedersen, Thomas Bondo (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Molecular structure, a key concept of chemistry, has remained elusive from the perspective of all-particle quantum mechanics despite many efforts. Viewing molecular structure as a manifestation of strong statistical ...
  • A quantum-mechanical non-Born–Oppenheimer model of a molecule in a strong magnetic field 
    Adamowicz, Ludwik; Stanke, Monika; Tellgren, Erik; Helgaker, Trygve (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    Interactions of a stationary external magnetic field with the spin and orbital magnetic momenta of a molecule are included in the quantum mechanical model where the Born–Oppenheimer approximation is not assumed. The model ...
  • Gaussians for Electronic and Rovibrational Quantum Dynamics 
    Wozniak, Aleksander P.; Adamowicz, Ludwik; Pedersen, Thomas Bondo; Kvaal, Simen (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    The assumptions underpinning the adiabatic Born-Oppenheimer (BO) approximation are broken for molecules interacting with attosecond laser pulses, which generate complicated coupled electronic-nuclear wave packets that ...
  • Laser-induced dynamic alignment of the HD molecule without the Born-Oppenheimer approximation 
    Adamowicz, Ludwik; Kvaal, Simen; Lasser, Caroline; Pedersen, Thomas Bondo (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)
    Laser-induced molecular alignment is well understood within the framework of the Born-Oppenheimer (BO) approximation. Without the BO approximation, however, the concept of molecular structure is lost, making alignment hard ...