Chemical Physics Letters 262, 431-436 (1996)

Hayes L. Williams^a, Tatiana Korona^b, Robert Bukowski^b, Bogumil Jeziorski^b, and Krzysztof Szalewicz ^a

^a Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA
^b Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland

Helium dimer potential from symmetry-adapted perturbation theory

Abstract

The intermolecular potential for the helium dimer has been computed using infinite-order symmetry-adapted perturbation theory and very large orbital and explicitly correlated basis sets. Our potential is significantly deeper than recent literature potentials. After adding the relativistic retardation correction, it accurately reproduces bulk properties of helium, the inclusion of retardation being essential for this agreement. Transport properties and virial coefficients are expected to be accurate enough to calibrate measuring apparatus.

Reprints are available on request. Send an e-mail to tatiana.korona@tiger.chem.uw.edu.pl

Back to the publication list of Tatiana Korona