World's Best Scientists 2026 revealed!

Best Publications

  • Coupled cluster response functions

    Henrik Koch;Poul Jo;rgensen

  • Linear and nonlinear response functions for an exact state and for an MCSCF state

    Jeppe Olsen;Poul Jo;rgensen

  • Determinant based configuration interaction algorithms for complete and restricted configuration interaction spaces

    Jeppe Olsen;Björn O. Roos;Poul Jo;rgensen

  • Excitation energies from the coupled cluster singles and doubles linear response function (CCSDLR). Applications to Be, CH+, CO, and H2O

    Henrik Koch;Hans Jørgen Aa. Jensen;Poul Jørgensen;Trygve Helgaker

  • Response functions in the CC3 iterative triple excitation model

    Ove Christiansen;Henrik Koch;Poul Jørgensen

  • Transition moments and dynamic polarizabilities in a second order polarization propagator approach

    Egon S. Nielsen;Poul Jo;rgensen;Jens Oddershede

  • The CC3 model: An iterative coupled cluster approach including connected triples

    Henrik Koch;Ove Christiansen;Poul Jørgensen;Alfrede M. Sanchez De Merás

  • Basis set convergence of the interaction energy of hydrogen-bonded complexes

    Asger Halkier;Wim Klopper;Trygve Helgaker;Poul Jo

  • The prediction of molecular equilibrium structures by the standard electronic wave functions

    Trygve Helgaker;Jürgen Gauss;Poul Jørgensen;Jeppe Olsen

  • An electronic Hamiltonian for origin independent calculations of magnetic properties

    Trygve Helgaker;Poul Jo;rgensen

  • Optimization of orbitals for multiconfigurational reference states

    Esper Dalgaard;Poul Jo;rgensen

  • Calculation of size‐intensive transition moments from the coupled cluster singles and doubles linear response function

    Henrik Koch;Rika Kobayashi;Alfredo Sanchez de Merás;Poul Jo

  • Full configuration-interaction and state of the art correlation calculations on water in a valence double-zeta basis with polarization functions

    Jeppe Olsen;Poul Jørgensen;Henrik Koch;Anna Balkova

  • Mo/ller–Plesset energy derivatives

    Poul Jo;rgensen;Trygve Helgaker

  • Coupled cluster energy derivatives. Analytic Hessian for the closed‐shell coupled cluster singles and doubles wave function: Theory and applications

    Henrik Koch;Hans Jørgen Aa. Jensen;Poul Jørgensen;Trygve Helgaker

  • Multiconfigurational self-consistent field calculations of nuclear shieldings using London atomic orbitals

    Kenneth Ruud;Trygve Helgaker;Rika Kobayashi;Poul Jo

  • Perturbative triple excitation corrections to coupled cluster singles and doubles excitation energies

    Ove Christiansen;Henrik Koch;Poul Jørgensen

  • Linear response calculations for large scale multiconfiguration self‐consistent field wave functions

    Poul Jo;rgensen;Hans Jo;rgen Aagaard Jensen

  • Surprising cases of divergent behavior in Mo/ller–Plesset perturbation theory

    Jeppe Olsen;Ove Christiansen;Henrik Koch;Poul Jo

  • Hartree-Fock limit magnetizabilities from London orbitals

    Kenneth Ruud;Trygve Helgaker;Keld L. Bak;Poul Jo

  • Integral-direct coupled cluster calculations of frequency-dependent polarizabilities, transition probabilities and excited-state properties

    Ove Christiansen;Asger Halkier;Henrik Koch;Poul Jo

  • Quadratic response functions for a multiconfigurational self‐consistent field wave function

    Hinne Hettema;Hans Jo;rgen Aa. Jensen;Poul Jo

  • Gauge-origin independent multiconfigurational self-consistent-field theory for vibrational circular dichroism

    Keld L. Bak;Poul Jo;rgensen;Trygve Helgaker

  • Ab initio analytical molecular gradients and Hessians

    Poul Jo;rgensen;Jack Simons

  • Second‐order Mo/ller–Plesset perturbation theory as a configuration and orbital generator in multiconfiguration self‐consistent field calculations

    Hans Jo;rgen Aa. Jensen;Poul Jo;rgensen

  • Solvent induced polarizabilities and hyperpolarizabilities of para‐nitroaniline studied by reaction field linear response theory

    Kurt V. Mikkelsen;Yi Luo;Hans Ågren;Poul Jo

  • Multiconfigurational quadratic response functions for singlet and triplet perturbations: The phosphorescence lifetime of formaldehyde

    Olav Vahtras;Hans Ågren;Poul Jo;rgensen

Frequent Co-Authors

Trygve Helgaker
Trygve Helgaker University of Oslo
Jeppe Olsen
Jeppe Olsen Aarhus University
Hans Ågren
Hans Ågren Uppsala University
Christof Hättig
Christof Hättig Ruhr University Bochum
Kenneth Ruud
Kenneth Ruud University of Tromsø - The Arctic University of Norway
Henrik Koch
Henrik Koch Scuola Normale Superiore di Pisa
Ove Christiansen
Ove Christiansen Aarhus University
Kurt V. Mikkelsen
Kurt V. Mikkelsen University of Copenhagen
Jack Simons
Jack Simons University of Utah
Yi Luo
Yi Luo University of Science and Technology of China

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