title: Information-theoretic measurements of coupling between structure and dynamics in glass formers.
abstract: We analyze connections between structure and dynamics in two model glass formers, using the mutual information between an initial configuration and the ensuing dynamics to compare the predictive value of different structural observables. We consider the predictive power of normal modes, locally favored structures, and coarse-grained measurements of local energy and density. The mutual information allows the influence of the liquid structure on the dynamics to be analyzed quantitatively as a function of time, showing that normal modes give the most useful predictions on short time scales while local energy and density are most strongly predictive at long times.
authors.affiliation: Department of Physics, University of Bath, Bath BA2 7AY, United Kingdom.
authors.forename: Robert L
authors.initials: RL
authors.lastname: Jack
authors.affiliation: HH Wills Physics Laboratory, Tyndall Avenue, Bristol BS8 1TL, United Kingdom and School of Chemistry, University of Bristol, Cantock Close, Bristol BS8 1TS, United Kingdom and Bristol Centre for Complexity Sciences, Bristol BS8 1TW, United Kingdom.
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Dunleavy
authors.affiliation: HH Wills Physics Laboratory, Tyndall Avenue, Bristol BS8 1TL, United Kingdom and School of Chemistry, University of Bristol, Cantock Close, Bristol BS8 1TS, United Kingdom and Centre for Nanoscience and Quantum Information, Tyndall Avenue, Bristol BS8 1FD, United Kingdom.
authors.forename: C Patrick
authors.initials: CP
authors.lastname: Royall