Numerical Renormalization Group at Criticality
T. Nishino, K. Okunishi, M. Kikuchi
Abstract
We apply a recently developed numerical renormalization group, the corner-transfer-matrix renormalization group (CTMRG), to 2D classical lattice models at their critical temperatures. It is shown that the combination of CTMRG and the finite-size scaling analysis gives two independent critical exponents.
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