High-quality variational wave functions for small 4He clusters

Details High-quality variational wave functions for small 4He clusters High-quality variational wave functions for small 4He clusters

1999-04-20

arxiv.org/abs/physics/9904037v1

Physics

Atomic and Molecular Clusters

5 pages, 1 ps figure, REVTeX, submitted to Phys. Rev. B

Scientific paper

10.1103/PhysRevB.60.6288

We report a variational calculation of ground state energies and radii for 4He_N droplets (3 \leq N \leq 40), using the atom-atom interaction HFD-B(HE). The trial wave function has a simple structure, combining two- and three-body correlation functions coming from a translationally invariant configuration-interaction description, and Jastrow-type short-range correlations. The calculated ground state energies differ by around 2% from the diffusion Monte Carlo results.

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