Universal amplitudes ratios for critical aging via functional renormalization group
-
Published:2022-06-09
Issue:26
Volume:55
Page:264008
-
ISSN:1751-8113
-
Container-title:Journal of Physics A: Mathematical and Theoretical
-
language:
-
Short-container-title:J. Phys. A: Math. Theor.
Author:
Vodret Michele,
Chiocchetta AlessioORCID,
Gambassi Andrea
Abstract
Abstract
We discuss how to calculate non-equilibrium universal amplitude ratios in the functional renormalization group approach, extending its applicability. In particular, we focus on the critical relaxation of the Ising model with non-conserved dynamics (model A) and calculate the universal amplitude ratio associated with the fluctuation–dissipation ratio of the order parameter, considering a critical quench from a high-temperature initial condition. Our predictions turn out to be in good agreement with previous perturbative renormalization-group calculations and Monte Carlo simulations.
Funder
European Research Council
Subject
General Physics and Astronomy,Mathematical Physics,Modeling and Simulation,Statistics and Probability,Statistical and Nonlinear Physics
Reference49 articles.
1. Out of equilibrium dynamics in spin-glasses and other glassy systems;Bouchaud,1997