Critical Indices from Perturbation Analysis of the Callan-Symanzik Equation
May, 197726 pages
Published in:
- Phys.Rev.B 17 (1978) 1365-1374
Report number:
- SACLAY-DPH-T-77-39
Citations per year
Abstract: (APS)
Recent results giving both the asymptotic behavior and the explicit values of the leading-order perturbation-expansion terms in fixed dimension for the coefficients of the Callan-Symanzik equation are analyzed by the the Borel-Leroy, Padé-approximant method for the n-component φ4 model. Estimates of the critical exponents for these models are obtained for n=0, 1, 2, and 3 in three dimensions with a typical accuracy of a few one thousandths. In two dimensions less accurate results are obtained.- FIELD THEORY: SCALAR
- RENORMALIZATION GROUP: CALLAN-SYMANZIK EQUATION
- PERTURBATION THEORY
- APPROXIMATION: BOREL-LEROY
- APPROXIMATION: PADE
- FIELD THEORY: CRITICAL PHENOMENA
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