0000000000514985

AUTHOR

M. Portesi

showing 2 related works from this author

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

1999

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.

Physics::Atomic and Molecular ClustersFísica
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State-dependent Jastrow correlation functions for 4He nuclei

1998

We calculate the ground-state energy for the nucleus 4He with V4 nucleon interactions, making use of a Jastrow description of the corresponding wavefunction with state-dependent correlation factors. The effect related to the state dependence of the correlation is quite important, lowering the upper bound for the ground-state energy by some 2 MeV.

Nuclear Theory (nucl-th)Nuclear TheoryNuclear TheoryFOS: Physical sciencesNuclear Experiment
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