The derivative expansion of the exact renormalization group

Details The derivative expansion of the exact renormalization group The derivative expansion of the exact renormalization group

2001-08-06

arxiv.org/abs/hep-th/0108031v1

Physics

High Energy Physics

High Energy Physics - Theory

Thesis, August 1996. LaTeX, 125 pages,28 figs

Scientific paper

We formulate a method of performing non-perturbative calculations in quantum field theory, based upon a derivative expansion of the exact renormalization group. We then proceed to apply this method to the calculation of critical exponents for three dimensional O(N) symmetric theory. Finally we discuss how the approximation scheme manages to reproduce some exactly known solutions in critical phenomena.

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