Construction of the Strong Coupling Expansion for the Ground State Energy of the Quartic, Sextic, and Octic Anharmonic Oscillator via a Renormalized Strong Coupling Expansion

Journal Article · Sun Sep 01 00:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.2859· OSTI ID:385766

Weniger, E J ^[1]

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1. Institut fuer Physikalische und Theoretische Chemie, Universitaet Regensburg, D-93040 Regensburg (Federal Republic of Germany)

A recently developed renormalized strong coupling expansion [E.J. Weniger, Ann.Phys.(N.Y.) {bold 246}, 133 (1996)] is employed to compute the coefficients of the standard strong coupling expansion for the ground state energy of the quartic, sextic, and octic anharmonic oscillator. This approach is very simple, both conceptually and technically, and produces more accurate results than previously used techniques which were in most cases applied to the quartic case only. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 385766
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 14 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANHARMONIC OSCILLATORS
COUPLING CONSTANTS
EIGENVALUES
ENERGY
EXPANSION
GROUND STATES
HAMILTONIANS
PERTURBATION THEORY
RENORMALIZATION
SCALING
STRONG-COUPLING MODEL