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RECORD NO.: 929060 INSPEC Abstract No: A76060544
AUTHOR: de Llano, M.; Plastino, A.
CORP SOURCE: Inst. de Fisica, Univ. de Mexico, Mexico
TITLE: Hartree-Fock states in the thermodynamic limit
SOURCE: Physical Review A (General Physics), vol.13, no.4, p. 1633-
40
ISSN: 0556-2791
CODEN: PLRAAN
PLACE OF PUBL: USA
LANGUAGE: English
YEAR: April 1976
TREATMENT: T Theoretical or Mathematical
ABSTRACT: The energy is minimized, as a function of particle density
and coupling of a class of two-parameter single particle
orbitals which explicitly satisfy the full Hartree-Fock
equations for occupied states in the thermodynamic limit. A
delta -function internucleon potential yields stabler states
than the plane-wave Hartree-Fock solutions, for sufficiently
strong coupling and/or high density. Minimizing the energy
with respect to the free parameters gives either first- or
second-order transitions, with bifurcation of the new energy
state from the old. The relevance of the model to neutron
star and nuclear star matter, to the possibility of
Pauling's 'close-packed spheron' structure, and to the
electron-gas problem is discussed (10 Refs.)
DESCRIPTORS: Hartree-Fock method; neutron stars; nuclear forces; nuclear
theory
IDENTIFIERS: thermodynamic limit; particle density; strong coupling; high
density; neutron star; nuclear star matter; two parameter
single particle orbitals; Hartree Fock equations; delta
function internucleon potential; electron gas; Paulings
close packed spheron
CLASS CODES: A2130 (Nuclear forces); A2160J (Hartree-Fock and random-
phase approximations in nuclei); A9530 (Fundamental aspects
of astrophysics)
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