Quick search Find article
Quick search
Find article

Shapes of tree representations of spin-glass landscapes

Wim Hordijk1, José F Fontanari1 and Peter F Stadler2,3,4

Show affiliations


Much of the information about the multi-valley structure of disordered spin systems can be convened in a simple tree structure—a barrier tree—the leaves and internal nodes of which represent, respectively, the local minima and the lowest energy saddles connecting those minima. Here we apply several statistics used in the study of phylogenetic trees to barrier trees that result from the energy landscapes of p-spin models. These statistics give information about the shape of these barrier trees, in particular about balance and symmetry. We then ask if they can be used to classify different types of landscapes, compare them with results obtained from random trees, and investigate the structure of subtrees of the barrier trees. We conclude that at least one of the used statistics is capable of distinguishing different types of landscapes, that the barrier trees from p-spin energy landscapes are quite different from random trees, and that subtrees of barrier trees do not reflect the overall tree structure, but their structure is correlated with their 'depth' in the tree.


PACS

05.50.+q Lattice theory and statistics (Ising, Potts, etc.)

02.10.Ox Combinatorics; graph theory

05.40.-a Fluctuation phenomena, random processes, noise, and Brownian motion

MSC

82D30 Random media, disordered materials (including liquid crystals and spin glasses)

05C05 Trees

Subjects

Mathematical physics

Statistical physics and nonlinear systems

Dates

Issue 13 (4 April 2003)

Received 14 November 2002, in final form 4 February 2003

Published 19 March 2003



  1. Shapes of tree representations of spin-glass landscapes

    Wim Hordijk et al 2003 J. Phys. A: Math. Gen. 36 3671

  2. Two-particle correlations on transverse momentum and momentum dissipation in Au–Au collisions at \sqrt{s_{NN}} = 130 GeV

    The STAR Collaboration et al 2007 J. Phys. G: Nucl. Part. Phys. 34 799

  3. History and Spectroscopy of EXor Candidates

    G. H. Herbig 2008 The Astronomical Journal 135 637

  4. Phase separation in nanoparticles

    A S Shirinyan and M Wautelet 2004 Nanotechnology 15 1720

  5. Foreword

    2002 J. Phys.: Condens. Matter 14

  6. The size dependence of the Einstein temperature of the tellurium nanoparticles

    H Ikemoto et al 2009 J. Phys.: Conf. Ser. 190 012126

  7. Orthogonal and non-orthogonal separation of variables in the wave equation utt-uxx+V(x)u=0utt-uxx+V(x)u=0

    R Z Zhdanov et al 1993 J. Phys. A: Math. Gen. 26 5959

  8. Ages and Abundances of Red Sequence Galaxies as a Function of LINER Emission-Line Strength

    Genevieve J. Graves et al. 2007 ApJ 671 243

  9. Magnetic reconnection as a mechanism for the generation of fast electrons

    M. Erba et al 1993 Nucl. Fusion 33 1577

  10. Application of Bravais-Friedel-Donnay-Harker, attachment energy and Ising models to predicting and understanding the morphology of molecular crystals

    R Docherty et al 1991 J. Phys. D: Appl. Phys. 24 89

View by subject




Export








Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.