Analytical approximation schemes for solving exact renormalization group equations in the local potential approximation

The relation between the Wilson–Polchinski and the Litim optimized ERGEs in the local potential approximation is studied with high accuracy using two different analytical approaches based on a field expansion: a recently proposed genuine analytical approximation scheme to two-point boundary value pr...

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Veröffentlicht in:	Nuclear physics. B 2008-02, Vol.789 (3), p.525-551
Hauptverfasser:	Bervillier, C., Boisseau, B., Giacomini, H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Critical exponents Derivative expansion Exact renormalization group Generalized hypergeometric functions High Energy Physics - Theory Physics Two-point boundary value problem
Online-Zugang:	Volltext
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