Evidence for Supersymmetry in the Random-Field Ising Model at D = 5

Nikolaos Fytas, Victor Martin-Mayor, Nicolas Sourlas, Marco Picco, Giorgio Parisi

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    27 Citations (Scopus)
    23 Downloads (Pure)

    Abstract

    We provide a non-trivial test of supersymmetry in the random-field Ising model at five spatial dimensions, by means of extensive zero-temperature numerical simulations. Indeed, supersymmetry relates correlation functions in a D-dimensional disordered system with some other correlation functions in a D-2 clean system. We first show how to check these relationships in a finite-size scaling calculation, and then perform a high-accuracy test. While the supersymmetric predictions are satisfied even to our high-accuracy at D=5, they fail to describe our results at D=4.
    Original languageEnglish
    Article number240603
    Number of pages5
    JournalPhysical Review Letters
    Volume122
    Issue number24
    DOIs
    Publication statusPublished - 20 Jun 2019

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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