An exact quantum Monte Carlo calculation of the helium–helium intermolecular potential. II
- 8 September 2001
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 115 (10) , 4546-4548
- https://doi.org/10.1063/1.1390512
Abstract
We report “exact” ab initio calculations with reduced statistical error for the potential energy of interaction of two helium atoms. For the equilibrium internuclear distance of 5.6 bohr, the calculated electronic energy is −5.807 483 53±0.000 000 06 hartrees and the corresponding well depth is 10.98±0.02 K.
Keywords
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