Phys. Rev. B 16, 3081–3099 (1977)Monte Carlo simulation of a many-fermion studyReceived 15 December 1976; published in the issue dated 1 October 1977 The Metropolis Monte Carlo method is used to sample the square of an antisymmetric wave function composed of a product of a Jastrow wave function and a number of Slater determinants. We calculate variational energies for 3He and several models of neutron matter. The first-order Wu-Feenberg expansion is shown always to underestimate the energy, sometimes seriously. The phase diagram for ground-state Yukawa matter is determined. There is a class of Yukawa potentials which do not lead to a crystal phase at any density. © 1977 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.16.3081
DOI:
10.1103/PhysRevB.16.3081
PACS:
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