{
  "id": "cond-mat/0608296",
  "version": "v1",
  "published": "2006-08-13T10:28:22.000Z",
  "updated": "2006-08-13T10:28:22.000Z",
  "title": "Spin and chiral stiffness of the XY spin glass in two dimensions",
  "authors": [
    "Martin Weigel",
    "Michel J. P. Gingras"
  ],
  "comment": "6 pages, 2 figures, proceedings of the HFM2006 conference, to appear in a special issue of J. Phys.: Condens. Matter",
  "journal": "J. Phys.: Condens. Matter 19, 145217 (2007)",
  "doi": "10.1088/0953-8984/19/14/145217",
  "categories": [
    "cond-mat.dis-nn"
  ],
  "abstract": "We analyze the zero-temperature behavior of the XY Edwards-Anderson spin glass model on a square lattice. A newly developed algorithm combining exact ground-state computations for Ising variables embedded into the planar spins with a specially tailored evolutionary method, resulting in the genetic embedded matching (GEM) approach, allows for the computation of numerically exact ground states for relatively large systems. This enables a thorough re-investigation of the long-standing questions of (i) extensive degeneracy of the ground state and (ii) a possible decoupling of spin and chiral degrees of freedom in such systems. The new algorithm together with appropriate choices for the considered sets of boundary conditions and finite-size scaling techniques allows for a consistent determination of the spin and chiral stiffness scaling exponents.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2006-08-13T10:28:22.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "xy spin glass",
      "chiral stiffness",
      "algorithm combining exact ground-state",
      "combining exact ground-state computations",
      "developed algorithm combining exact"
    ],
    "tags": [
      "conference paper",
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}