Feynman-Kac path-integral calculation of the ground-state energies of atoms

Journal Article · Mon Aug 10 00:00:00 EDT 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.893· OSTI ID:7252493

Korzeniowski, A; Fry, J L; Orr, D E; Fazleev, N G ^[1]

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1. The University of Texas at Arlington, Arlington, Texas 76019 (United States)

Since its introduction in 1950, the Feynman-Kac path-integral approach has received limited use in spite of its simplicity in solving the quantum many-body problem. This paper provides a procedure to include permutation symmetries for identical particles in the Feynman-Kac method. It demonstrates that this formulation is ideally suited for massively parallel computers. This new method is used for the first time to calculate energies of the ground state of H, He, Li, Be, and B, and also the first excited state of He.

• OSTI ID: 7252493
• Journal Information: Physical Review Letters; (United States), Vol. 69:6; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
GROUND STATES
BERYLLIUM
BORON
HELIUM
HYDROGEN
LITHIUM
CALCULATION METHODS
EXCITED STATES
FEYNMAN PATH INTEGRAL
MANY-BODY PROBLEM
PARALLEL PROCESSING
SYMMETRY
THEORETICAL DATA
USES
ALKALI METALS
ALKALINE EARTH METALS
DATA
ELEMENTS
ENERGY LEVELS
FLUIDS
GASES
INFORMATION
INTEGRALS
METALS
NONMETALS
NUMERICAL DATA
PROGRAMMING
RARE GASES
SEMIMETALS
664100* - Theory of Electronic Structure of Atoms & Molecules- (1992-)