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Convergent expansion for critical exponents in the O(n)-symmetric φ4 model for large ϵ

✍ Scribed by Juha Honkonen; Mikhail Nalimov


Book ID
108440329
Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
78 KB
Volume
459
Category
Article
ISSN
0370-2693

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Variational resummation for ϵ-expansions
✍ Hagen Kleinert 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 163 KB

We develop a method for extracting accurate critical exponents from perturbation expansions of the O n -symmetric nonlinear s-model in D s 2 q e dimensions. This is possible by considering the e-expansions in this model as strong-cou-Ž . Ž . pling expansions of functions of the variable ´' 2 4y D r