Abstract
The renormalization group method is reformulated for application to quantum mechanical many-particle systems situated on regular lattices in two or three-dimensional configuration space. The method is applied to the spin 1/2 XY model on the square lattice. The free energy curve is in excellent agreement with that obtained from high temperature series expansion. No critical temperature is found.
Publisher
Canadian Science Publishing
Subject
General Physics and Astronomy
Cited by
38 articles.
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