Dimensional expansions
Journal Article
·
· Physical Review Letters; (United States)
- Department of Physics, Washington University, St. Louis, Missouri 63130 (United States)
It is proposed that the dimension {ital D} be used as a perturbation parameter. The coefficients in the resulting dimensional expansion, a series in powers of {ital D}, can be obtained in both quantum-mechanical and field-theoretic models. In this paper the first three terms in the dimensional expansion for the ground-state energy density for a self-interacting {phi}{sup 2{ital K}} field theory are calculated. Dimensional expansions are shown to provide accurate nonperturbative analytic results.
- OSTI ID:
- 7036060
- Journal Information:
- Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 68:25; ISSN PRLTA; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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