Universal amplitudes ratios for critical aging via functional renormalization group

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.

References in corpus (31)

• Nonequilibrium Critical Phenomena and Phase Transitions into Absorbing States
• Non-Perturbative Renormalization Flow in Quantum Field Theory and Statistical Physics
• The nonperturbative functional renormalization group and its applications
• Non-reciprocal phase transitions
• Optimisation of the exact renormalisation group
• An Introduction to the Nonperturbative Renormalization Group
• Dynamical Critical Phenomena in Driven-Dissipative Systems
• Mode-Coupling Approximations, Glass Theory and Disordered Systems
• Ageing Properties of Critical Systems
• Observation of universal dynamics in a spinor Bose gas far from equilibrium
• Prethermalization and universal dynamics in near-integrable quantum systems
• Observation of universal dynamics in an isolated one-dimensional Bose gas far from equilibrium
• Nonequilibrium quantum criticality in open electronic systems
• Response of non-equilibrium systems at criticality: Ferromagnetic models in dimension two and above
• Off equilibrium dynamics and aging in unfrustrated systems
• On the definition of a unique effective temperature for non-equilibrium critical systems
• Phase Transitions and Spatio-Temporal Fluctuations in Stochastic Lattice Lotka-Volterra Models
• Observation of scaling in the dynamics of a strongly quenched quantum gas
• Critical Dynamics of a Two-dimensional Superfluid near a Non-Thermal Fixed Point
• Phase transition in a spatial Lotka-Volterra model
• Dynamical crossovers in prethermal critical states
• Nonperturbative renormalization group for the stationary Kardar-Parisi-Zhang equation: scaling functions and amplitude ratios in 1+1, 2+1 and 3+1 dimensions
• Matter Wave Turbulence: Beyond Kinetic Scaling
• Short-time Critical Dynamics of the 3-Dimensional Ising Model
• Non-perturbative Approach to Critical Dynamics
• Aging and fluctuation-dissipation ratio for the diluted Ising Model
• Non-equilibrium fixed points of coupled Ising models
• Critical aging of Ising ferromagnets relaxing from an ordered state
• Universal short-time dynamics: boundary functional renormalization group for a temperature quench
• Renormalization-group description of nonequilibrium critical short-time relaxation processes: a three-loop approximation
• Slow dynamics in critical ferromagnetic vector models relaxing from a magnetized initial state