Many-body theory of atomic deuterium

Journal Article · Mon Apr 01 04:00:00 EST 1991 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.43.7595· OSTI ID:5461990

Greeff, C W; Clements, B E; Talbot, E F ^[1]; Glyde, H R ^[2]

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1. Department of Physics, University of Delaware, Newark, Delaware 19711 (USA)
2. Department of Physics, University of Alberta, Edmonton, Alberta, (Canada) T6G 2J1

Deuterium atoms form a fascinating spin-one Fermi fluid of moderate density. Several properties of this fluid are evaluated using the self-consistent Green-function method of many-body theory. The aim is both to determine the properties and to see how well Green-function methods can be implemented in a moderately dense Fermi liquid. Approximations begin with the self-energy. This is separated into Brueckner-Hartree-Fock terms and correlation or two-hole--one-particle (HHP) terms. We find ground-state energies {ital E} in reasonable agreement with Monte Carlo values. While the HHP terms are not so important for {ital E}, they lead to a significant enhancement of the effective mass {ital m}{sup *} at the Fermi surface {var epsilon}{sub {ital F}}. The particle-hole interaction is calculated from the self-energy using the conserving Baym-Kadanoff method. This leads to Landau parameters {ital F}{sub 0}{sup {ital s}} that are positive and an {ital F}{sub 1}{sup {ital s}} that is consistent with {ital m}{sup *}.

• DOE Contract Number: FG02-84ER45082
• OSTI ID: 5461990
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 43:10; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

656002* -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DEUTERIUM
EFFECTIVE MASS
ENERGY
ENERGY LEVELS
FERMI GAS
FERMI LEVEL
FLUIDS
FUNCTIONS
GASES
GREEN FUNCTION
GROUND STATES
HARTREE-FOCK METHOD
HYDROGEN ISOTOPES
ISOTOPES
LANDAU LIQUID HELIUM THEORY
LIGHT NUCLEI
MANY-BODY PROBLEM
MASS
MONTE CARLO METHOD
NUCLEI
ODD-ODD NUCLEI
PHYSICAL PROPERTIES
SELF-ENERGY
STABLE ISOTOPES