Self-induced heterogeneity in deeply supercooled liquids

Abstract

A theoretical treatment of deeply supercooled liquids is difficult because their properties emerge from spatial inhomogeneities that are self-induced, transient, and nanoscopic. I use computer simulations to analyse self-induced static and dynamic heterogeneity in equilibrium systems approaching the experimental glass transition. I characterise the broad sample-to-sample fluctuations of salient dynamic and thermodynamic properties in elementary mesoscopic systems. Findings regarding local lifetimes and distributions of dynamic heterogeneity are in excellent agreement with recent single molecule studies. Surprisingly broad thermodynamic fluctuations are also found, which correlate well with dynamics fluctuations, thus providing a local test of the thermodynamic origin of slow dynamics.

6 pages, 4 figs

References in corpus (11)

• Theoretical perspective on the glass transition and amorphous materials
• The role of local structure in dynamical arrest
• Irreversible reorganization in a supercooled liquid originates from localised soft modes
• The glass transition of dense fluids of hard and compressible spheres
• Structure and dynamics in glass-formers: predictability at large length scales
• Comment on the history of the stretched exponential function
• Caging and mosaic lengthscales in plaquette spin models of glasses
• Evidence for a disordered critical point in a glass-forming liquid
• How to "measure" a structural relaxation time that is too long to be measured?
• Constructing explicit magnetic analogies for the dynamics of glass forming liquids
• Does the configurational entropy of polydisperse particles exist?

Cited by in corpus (24)

• Thirty milliseconds in the life of a supercooled liquid
• Modern computational studies of the glass transition
• Predicting dynamic heterogeneity in glass-forming liquids by physics-inspired machine learning
• Solid-that-flows picture of glass-forming liquids
• Relevance of Shear Transformations in the Relaxation of Supercooled Liquids
• On the Spectral Shape of the Structural Relaxation in Deeply Supercooled Liquids
• Johari-Goldstein $\beta$ relaxation in glassy dynamics originates from two-scale energy landscape
• Statistical mechanics of coupled supercooled liquids in finite dimensions
• Dynamic heterogeneity at the experimental glass transition predicted by transferable machine learning
• Computer simulations of the glass transition and glassy materials
• Microscopic observation of two-level systems in a metallic glass model
• Equilibrium Fluctuations in Mean-field Disordered Models
• Direct numerical analysis of dynamic facilitation in glass-forming liquids
• Collective relaxation dynamics in a three-dimensional lattice glass model
• Selecting Relevant Structural Features for Glassy Dynamics by Information Imbalance
• Collective dynamics in a glass-former with Mari-Kurchan interactions
• Characterising the slow dynamics of the swap Monte Carlo algorithm
• Swap Monte Carlo for diatomic molecules
• Mean-squared Energy Difference for Exploring Potential Energy Landscapes of Supercooled Liquids
• Understanding Flow Behaviors of Supercooled Liquids by Embodying Solid-Liquid Duality at Particle Level
• Theory of the $\beta$-Relaxation Beyond Mode-Coupling Theory: A Microscopic Treatment
• Microscopic Theory of a Fluctuation-Induced Dynamical Crossover in Supercooled Liquids
• Replica Field Theory for a Generalized Franz--Parisi Potential of Inhomogeneous Glassy Systems: New Closure and the Associated Self-Consistent Equation
• Static self-induced heterogeneity in glass-forming liquids: Overlap as a microscope