Born January 19, 1950, Gdansk, Poland
Professor, Department of Physics and Astronomy, University of Delaware, USA
Visiting Fellow, Joint Institute for Laboratory Astrophysics, University of Colorado (1995–1996), Fellow, American Physical Society (2000), Member, Franklin Award Committee (2001–).
About 200 scientific publications in Physics and Chemistry
Intermolecular forces: development of a new approach to intermolecular forces, known as symmetry-adapted perturbation theory (SAPT), starting from isolated monomers and imposing the correct permutation symmetry of cluster's wave function; explanation of convergence properties of SAPT; formulation and implementation of SAPT applicable to many-electron dimers as well as to pairwise nonadditive interactions; development of SAPT based on density-functional theory which extended the applicability of accurate electronic-structure methods to interactions of molecules several times larger than previously possible; formulation of dispersionless density functional; calculations of some of the most reliable intermolecular potentials to date; applications of these potentials to predict cluster spectra, collision cross sections, and bulk properties with accuracies comparable to and sometimes exceeding those of experimental data; explanation of several observations such as anomalous rotational constants in helium nanodroplets or concerning the structure of liquid water; one of the first predictions of crystal structure of organic molecules from first principles; generation of helium potentials used to create new thermophysical standards; establishment of convergence rates of many-body expansion in clusters and condensed phases.
Explicitly-correlated methods: formulation of first-quantized, explicitly correlated coupled cluster theory and pioneering applications of Gaussian-type geminals (GTG) using this method; discovery of new functionals for GTG optimization; benchmark GTG calculations for small systems including studies of molecular properties, electron-molecule scattering, and interatomic potentials.
Exotic molecules: determination of the beta-electron spectrum of molecular tritium, needed for the interpretation of neutrino mass experiments; studies of properties of muonic molecules undergoing muon-catalyzed fusion; demonstration that, contrary to earlier predictions, the measured fusion yield is at the theoretical limit; determination of density shifts and broadenings of transition lines of antiprotonic helium by helium gas relevant for tests of charge-parity-time invariance.