Author(s): Paul E S Wormer, Ad van der Avoird
Paul E. S. Wormer was born in Amsterdam, The Netherlands, in 1942. He did his undergraduate work in chemistry at the Technical University Delft, where he received his degree (with honors) in 1969. After graduation he spent a year as a research assistant at Duke University with D, B, Chestnut. After returning to The Netherlands, he received his doctorate degree in Theoretical Chemistry from the University of Nijmegen in 1975 (with honors); A. van der Avoird was his promoter. Since then he has held a permanent position in Nijmegen. He spent a sabbatical year and a few summers with J. Paldus in the Department of Applied Maths of the University of Waterloo, Canada, and was a Visiting Fellow of the Royal Society in 1986 as a guest of J. Gerratt, University of Bristol, U.K. His main research interests are the topics covered in the present review, the electronic correlation problem, and the group theory of many-particle systems.
Ad van der Avoird studied chemical engineering at the Technical University in Eindhoven, The Netherlands, from 1959 to 1964. From 1964 to 1971 he worked at the Battelle Institute in Geneva, Switzerland, and at the Unilever Research Laboratory in Vlaardingen, where in 1968 he became Head of the Molecular Physics section. In 1968 he obtained his Ph.D. degree at the Technical University in Eindhoven, and in the same year he became a part-time professor at the University of Nijmegen. In 1971 he became Full Professor of Theoretical Chemistry in Nijmegen. Since 1979 he has been a member of the Netherlands Royal Academy of Arts and Sciences (KNAW) and since 1997 a member of the International Academy of Quantum Molecular Science. In 1992 he worked in the spectroscopy group of Richard Saykally at the University of California at Berkeley as a Visiting Miller Research Professor. He is presently a member of the Editorial Board of the Journal of Chemical Physics.