Replica Real Space Renormalization Group for Spin Glasses
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We construct a real space renormalization group (RG) approach for Ising spin glasses on hypercubic lattices within the scheme of the Migdal-Kadanoff approximation using replicas. Our replica symmetric solution yields results consistent with simple decimation previously obtained and the introduction of breaking of replica symmetry within the RG is discussed, which inserts in a natural fashion non-linear RG into the problem.
12 pages, RevTEX, figure upon request
12 pages, RevTEX, figure upon request