Nonequilibrium critical dynamics of the three-dimensional gauge glass

Article

关键词: VORTEX-GLASS;    RANDOM-SUPERCONDUCTOR;    EQUILIBRIUM DYNAMICS;    II SUPERCONDUCTORS;    UNIVERSALITY CLASS;    CRITICAL EXPONENTS;    SPIN-GLASSES;    MODEL;    SYSTEMS;    PHASE;   

DOI  :  10.1103/PhysRevB.78.184431

来源: SCIE

【 摘 要 】

We study the nonequilibrium aging behavior of the gauge glass model in three dimensions at the critical temperature. We perform Monte Carlo simulations with a Metropolis update, and correlation and response functions are calculated for different waiting times. We obtain a multiplicative aging scaling of the correlation and response functions, calculating the aging exponent b and the nonequilibrium autocorrelation decay exponent lambda(c)/z(c). We also analyze the fluctuation-dissipation relationship at the critical temperature, obtaining the critical fluctuation-dissipation ratio X-infinity. By comparing our results with the aging scaling reported previously for a model of interacting flux lines in the vortex-glass regime, we found that the exponents for both models are very different.

【 授权许可】

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