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Wave-function renormalization for the Coulomb-gas in Wegner-Houghton's RG method

I. Nandori·J. Polonyi·K. Sailer
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Abstract

The RG flow for the sine-Gordon model is determined by means of the method of Wegner and Houghton in next-to-leading order of the derivative expansion. For small values of the fugacity this agrees with the well-known RG flow of the two-dimensional Coulomb-gas found in the dilute gas approximation and a systematic way of obtaining higher-order corrections to this approximation is given.

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I. Nandori, J. Polonyi, K. Sailer. 2000-12-21. Wave-function renormalization for the Coulomb-gas in Wegner-Houghton's RG method. https://doi.org/10.1080/13642810110043655

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