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Collective fields and flow equations

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Zeitschrift für Physik C Particles and Fields

Abstract

We supplement the flow equations or exact renormalization group equations in continuum field theory with the introduction of collective fields, which offer a convenient description of bound states and vacuum condensates. In addition the flow equations are improved by use of scale-dependent field redefinitions such that they involve the exact propagator at every scale.

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Authors and Affiliations

  1. Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, W-6900, Heidelberg, Germany

    Ulrich Ellwanger

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  1. Ulrich Ellwanger
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Supported by a DFG Heisenberg fellowship

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Ellwanger, U. Collective fields and flow equations. Z. Phys. C - Particles and Fields 58, 619–627 (1993). https://doi.org/10.1007/BF01553022

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  • DOI: https://doi.org/10.1007/BF01553022

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