Intermittency of glassy relaxation and the emergence of a non-equilibrium spontaneous measure in the aging regime

Abstract

We consider heat exchange processes between non-equilibrium aging systems (in their activated regime) and the thermal bath in contact. We discuss a scenario where two different heat exchange processes concur in the overall heat dissipation: a stimulated fast process determined by the temperature of the bath and a spontaneous intermittent process determined by the fact that the system has been prepared in a non-equilibrium state. The latter is described by a probability distribution function (PDF) that has an exponential tail of width given by a parameter $\lambda$, and satisfies a fluctuation theorem (FT) governed by that parameter. The value of $\lambda$ is proportional to the so-called effective temperature, thereby providing a practical way to experimentally measure it by analyzing the PDF of intermittent events.

arXiv commentLatex file, 8 pages + 5 postscript figures

References in corpus (12)

• Energy flow, partial equilibration and effective temperatures in systems with slow dynamics
• Violation of the fluctuation-dissipation theorem in glassy systems: basic notions and the numerical evidence
• Direct observation of molecular cooperativity near the glass transition
• Stationary and Transient Work-Fluctuation Theorems for a Dragged Brownian Particle
• Replica Field Theory for Deterministic Models (II): A Non-Random Spin Glass with Glassy Behavior
• Metastable states as a key to the dynamics of supercooled liquids
• Nanometer Scale Dielectric Fluctuations at the Glass Transition
• Aging in the random energy model
• Potential energy landscape of finite-size mean-field models for glasses
• Fluctuation-dissipation ratio in lattice-gas models with kinetic constraints
• Activated processes and Inherent Structure dynamics of finite-size mean-field models for glasses
• Aging in the Linear Harmonic Oscillator

Cited by in corpus (45)

• Slow dynamics in glassy soft matter
• The effective temperature
• Plastic Response of a 2D Lennard-Jones amorphous solid: Detailed analysis of the local rearrangements at very slow strain-rate
• An experimental test of the Jarzynski equality in a mechanical experiment
• Dynamic Relaxation of a Levitated Nanoparticle from a Non-Equilibrium Steady State
• Temperature in and out of equilibrium: a review of concepts, tools and attempts
• Time Resolved Correlation measurements of temporally heterogeneous dynamics
• Fluctuations in out of equilibrium systems: from theory to experiment
• On the Study of Collective Dynamics in Supercooled Liquids through the Statistics of the Iso-Configurational Ensemble
• Work and heat fluctuations in two-state systems: a trajectory thermodynamics formalism
• On the critical slowing down exponents of mode coupling theory
• Estimate of the free energy difference in mechanical systems from work fluctuations: experiments and models
• Intermittency, aging and record fluctuations
• Linear response in aging glassy systems, intermittency and the Poisson statistics of record fluctuations
• Condensation of Fluctuations in and out of Equilibrium
• Record Dynamics: Direct Experimental Evidence from Jammed Colloids
• Experimental study of out of equilibrium fluctuations in a colloidal suspension of Laponite using optical traps
• Heat exchanges in a quenched ferromagnet
• Generalized fluctuation relation and effective temperatures in a driven fluid
• Heat fluctuations of Brownian oscillators in nonstationary processes: fluctuation theorem and condensation transition
• Landau theory for finite-time dynamical phase transitions
• Mode-Dependent nonequilibrium temperature in aging systems
• Aging in Dense Colloids as Diffusion in the Logarithm of Time
• Renormalization Group on hierarchical lattices in finite dimensional disordered Ising and Blume-Emery-Griffiths Models
• Dynamic fluctuations in unfrustrated systems: random walks, scalar fields and the Kosterlitz-Thouless phase
• Energy and Heat Fluctuations in a Temperature Quench
• Aging and intermittency in a p-spin model of a glass
• Exactly solvable spin-glass models with ferromagnetic couplings: the spherical multi-$p$-spin model in a self-induced field
• Mesoscopic fluctuations and intermittency in aging dynamics
• A fluctuation relation for weakly ergodic aging systems
• Experiments in randomly agitated granular assemblies close to the jamming transition
• Temporal and spatial heterogeneity in aging colloids: a mesoscopic model
• Finite size effects and loss of self-averageness in the relaxational dynamics of the spherical Sherrington-Kirkpatrick model
• Two-Time Correlations for Probing the Aging Dynamics of Jammed Colloids
• Off equilibrium fluctuations in a polymer glass
• Singular behavior of fluctuations in a relaxation process
• Effective Trap-like Activated Dynamics in a Continuous Landscape
• Fluctuation relations in non-equilibrium stationary states of Ising models
• Record dynamics of evolving metastable systems: theory and applications
• Thermal shifts and intermittent linear response of aging systems
• Small clusters Renormalization Group in 2D and 3D Ising and BEG models with ferro, antiferro and quenched disordered magnetic interactions
• Glassy dynamics: effective temperatures and intermittencies from a two-state model
• Dynamic phase diagram of the Number Partitioning Problem
• Thermal noise properties of two aging materials
• Instability cascades in crumpling mylar sheets follow a log-Poisson statistic