Research PapersNo Access

SOLVING NONPERTURBATIVE FLOW EQUATIONS

J. ADAMS

Theoretical Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP, UK

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N. TETRADIS

Theoretical Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP, UK

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J. BERGES

Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany

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F. FREIRE

Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany

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C. WETTERICH

Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany

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S. BORNHOLDT

Institut für Theoretische Physik, Universität Kiel, Olshausenstr. 6, 24118 Kiel, Germany

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https://doi.org/10.1142/S0217732395002520Cited by:67 (Source: Crossref)

Abstract

Nonperturbative exact flow equations describe the scale dependence of the effective average action. We present a numerical solution for an approximate form of the flow equation for the potential in a three-dimensional N-component scalar field theory. The critical behavior, with associated critical exponents, can be inferred with good accuracy.