Effects of random pinning on the potential energy landscape of a supercooled liquid
arXiv:1901.05923 · doi:10.1063/1.5042140
Abstract
We use energy landscape methods to investigate the response of a supercooled liquid to random pinning. We classify the structural similarity of different energy minima using a measure of overlap. This analysis reveals a correspondence between distinct particle packings (which are characterised via the overlap) and funnels on the energy landscape (which are characterised via disconnectivity graphs). As the number of pinned particles is increased, we find a crossover from glassy behavior at low pinning to a structure-seeking landscape at high pinning, in which all thermally accessible minima are structurally similar. We discuss the consequences of these results for theories of randomly pinned liquids. We also investigate how the energy landscape depends on the fraction of pinned particles, including the degree of frustration and the evolution of distinct packings as the number of pinned particles is reduced.
arXiv commentSupporting research data may be found at https://doi.org/10.17863/CAM.30987
References in corpus (35)
- Community structure in social and biological networks
- Global Optimization by Basin-Hopping and the Lowest Energy Structures of Lennard-Jones Clusters Containing up to 110 Atoms
- Theoretical perspective on the glass transition and amorphous materials
- Testing Mode-Coupling Theory for a Supercooled Binary Lennard-Jones Mixture I: The van Hove Correlation Function
- Supercooled Liquids for Pedestrians
- Theory of Structural Glasses and Supercooled Liquids
- Dynamics on the Way to Forming Glass: Bubbles in Space-time
- Inherent Structure Entropy of Supercooled Liquids
- A Doubly Nudged Elastic Band Method for Finding Transition States
- Thermodynamic signature of growing amorphous order in glass-forming liquids
- Thermodynamics of glasses: a first principle computation
- Crossover to Potential Energy Landscape Dominated Dynamics in a Model Glass-forming Liquid
- Spontaneous and induced dynamic fluctuations in glass-formers I: General results and dependence on ensemble and dynamics
- Phase diagram of glassy systems in an external field
- Ideal Glass Transitions by Random Pinning
- Energy Barriers and Activated Dynamics in a Supercooled Lennard-Jones Liquid
- Static point-to-set correlations in glass-forming liquids
- Finding pathways between distant local minima
- Hopping in a Supercooled Lennard-Jones Liquid: Metabasins, Waiting Time Distribution, and Diffusion
- Probing a liquid to glass transition in equilibrium
- Equilibrium phase diagram of a randomly pinned glass-former
- Metastable states in glassy systems
- Overlap fluctuations in glass-forming liquids
- Order in glassy systems
- A novel approach to numerical measurements of the configurational entropy in supercooled liquids
- Evidence for a disordered critical point in a glass-forming liquid
- Growing length scales in a supercooled liquid close to an interface
- Phase transition for quenched coupled replicas in a plaquette spin model of glasses
- Non-linear dynamic response of glass-forming liquids to random pinning
- Glassy dynamics of partially pinned fluids: an alternative mode-coupling approach
- Understanding the Dynamics of Glass-forming Liquids with Random Pinning within the Random First Order Transition Theory
- Investigating amorphous order in stable glasses by random pinning
- Pinning Susceptibility : A Novel Method to Study Growth of Amorphous Order in Glass-forming Liquids
- Fluctuations and Shape of Cooperative Rearranging Regions in Glass-Forming Liquids
- First Principle Computation of Random Pinning Glass Transition, Glass Cooperative Length-Scales and Numerical Comparisons