作者: V.R. Pandharipande
DOI: 10.1016/0375-9474(71)90413-1
关键词: Correlation function (statistical mechanics) 、 Variational method 、 Cluster expansion 、 Physics 、 Neutron star 、 Computational physics 、 Neutron 、 Equation of state 、 Nuclear matter 、 Differential equation 、 Nuclear physics
摘要: Abstract The energy of the neutron gas is studied with Reid and Bressel-Kerman-Rouben soft-core potentials up to a density 4.5 neutrons fm 3 . Very approximate estimates for solid energies are presented also Hamada-Johnston hard-core potential. short-range correlations treated by simple variational method in which cluster expansion expectation value, Jastrow wave function truncated at lowest-order two-body clusters. Healing constraints introduced variation from qualitative comparison Brueckner theory differential equation obtained correlation minimizing energy. effective interaction use uncorrelated functions, given this procedure interpreted Moszkowski-Scott separation method. It shown that calculations may be reasonable soft core potentials, whereas their applicability potential doubtful ϱ ⪆ 0.7 -3 results give an state dense matter order uncertainty it due neutron-neutron short range, useful star structure investigations.