A Density Matrix Algorithm for 3D Classical Models

Abstract

We generalize the corner transfer matrix renormalization group, which\nconsists of White's density matrix algorithm and Baxter's method of the corner\ntransfer matrix, to three dimensional (3D) classical models. The\nrenormalization group transformation is obtained through the diagonalization of\ndensity matrices for a cubic cluster. A trial application for 3D Ising model\nwith m=2 is shown as the simplest case.\n