{
  "id": "cond-mat/9610107",
  "version": "v1",
  "published": "1996-10-14T10:48:18.000Z",
  "updated": "1996-10-14T10:48:18.000Z",
  "title": "Density Matrix and Renormalization for Classical Lattice Models",
  "authors": [
    "T. Nishino",
    "K. Okunishi"
  ],
  "comment": "21 pages, Latex, 14 figures in postscript files, Proc. of the 1996 El Escorial Summer School on \"Strongly Correlated Magnetic and Superconducting Systems\"",
  "doi": "10.1007/BFb0104638",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "We review the variational principle in the density matrix renormalization group (DMRG) method, which maximizes an approximate partition function within a restricted degrees of freedom; at zero temperature, DMRG mini- mizes the ground state energy. The variational principle is applied to two-dimensional (2D) classical lattice models, where the density matrix is expressed as a product of corner transfer matrices. (CTMs) DMRG related fields and future directions of DMRG are briefly discussed.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1996-10-14T10:48:18.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "classical lattice models",
      "density matrix renormalization group",
      "variational principle",
      "corner transfer matrices",
      "approximate partition function"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 21,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}