Non-Perturbative Renormalization in Lattice Field Theory

Details Non-Perturbative Renormalization in Lattice Field Theory Non-Perturbative Renormalization in Lattice Field Theory

2001-04-11

arxiv.org/abs/hep-lat/0104005v1

Physics

High Energy Physics

High Energy Physics - Lattice

Ph.D. thesis, 146 pages, 82 eps figures

Scientific paper

Non-perturbative renormalization of lattice composite operators plays a crucial role in many applications of lattice field theory. We sketch the general problems involved in this task and the methods which are currently used to cope with them. We present a detailed investigation of a new approach based on the operator product expansion. We test the new method on the two-dimensional O(3) sigma-model and discuss its advantages and limitations. Ph.D. thesis at Scuola Normale Superiore, Pisa, Italy.

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