Nonanalyticity of the beta-function and systematic errors in field-theoretic calculations of critical quantities

Details Nonanalyticity of the beta-function and systematic errors in field-theoretic calculations of critical quantities Nonanalyticity of the beta-function and systematic errors in field-theoretic calculations of critical quantities

2000-10-25

arxiv.org/abs/hep-th/0010228v1

Physics

High Energy Physics

High Energy Physics - Theory

9 pages

Scientific paper

We consider the fixed-dimension perturbative expansion. We discuss the
nonanalyticity of the renormalization-group functions at the fixed point and
its consequences for the numerical determination of critical quantities.

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