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arXiv · hep-th/9705129

Polchinski equation, reparameterization invariance and the derivative expansion

Jordi Comellas
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Abstract

The connection between the anomalous dimension and some invariance properties of the fixed point actions within exact RG is explored. As an application, Polchinski equation at next-to-leading order in the derivative expansion is studied. For the Wilson fixed point of the one-component scalar theory in three dimensions we obtain the critical exponents η=0.042, ν=0.622 and ω=0.754.

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Jordi Comellas. 1997-05-19. Polchinski equation, reparameterization invariance and the derivative expansion. https://doi.org/10.1016/s0550-3213(97)00692-5

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