Ground-state energetics of spin-aligned deuterium
Thesis/Dissertation
·
OSTI ID:5321340
From the viewpoint of computational many-body theory, the D(down arrow) systems are extremely interesting since they provide new examples of strongly interacting fermion systems displaying a range of level degeneracies. Further, spin-aligned deuterium has the special advantages (with respect to helium or nuclear systems) that the pair potential is known to great accuracy. This thesis applies to this novel problem variational Monte Carlo and correlated basis function (CBF) methods that have been successful in describing the ground states of nuclear matter and the helium liquids. Elements of state-independent Jastrow theory are outlined, and it is shown how one applies Fermi hypernetted chain techniques to construct the radial distribution function leading to the evaluation of the Jastrow energy. Accurate Monte Carlo evaluation of the Jastrow energy expectation value allows one to conclude that two species of D(down arrow) are self-bound liquids. The variational wave function is then improved by incorporating non-Jastrow correlations. Equations of state for three species of D(down arrow) are calculated. Additionally, the radial distribution function, generated by the ground-state wave function and the related liquid structure function, is studied. Results for the momentum distribution and its transform, the one-body density matrix, are also presented.
- Research Organization:
- Toronto Univ., Ontario (Canada)
- OSTI ID:
- 5321340
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
653002 -- Nuclear Theory-- Nuclear Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
DENSITY MATRIX
DEUTERIUM
DISTRIBUTION FUNCTIONS
ENERGY LEVELS
EQUATIONS
EQUATIONS OF STATE
FUNCTIONS
GROUND STATES
HYDROGEN ISOTOPES
ISOTOPES
JASTROW THEORY
LIGHT NUCLEI
MATRICES
MOMENTUM TRANSFER
MONTE CARLO METHOD
NUCLEI
ODD-ODD NUCLEI
ORIENTATION
SPIN ORIENTATION
STABLE ISOTOPES
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
653002 -- Nuclear Theory-- Nuclear Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
DENSITY MATRIX
DEUTERIUM
DISTRIBUTION FUNCTIONS
ENERGY LEVELS
EQUATIONS
EQUATIONS OF STATE
FUNCTIONS
GROUND STATES
HYDROGEN ISOTOPES
ISOTOPES
JASTROW THEORY
LIGHT NUCLEI
MATRICES
MOMENTUM TRANSFER
MONTE CARLO METHOD
NUCLEI
ODD-ODD NUCLEI
ORIENTATION
SPIN ORIENTATION
STABLE ISOTOPES