Growing Spatial Correlations of Particle Displacements in a Simulated Liquid on Cooling Toward the Glass Transition
C Donati, S C. Glotzer, P H. Poole
We define a correlation function that quantifies the spatial correlation of single-particle displacements in liquids and amorphous materials. We show for an equilibrium liquid that this function is related to fluctuations in a bulk dynamical variable. We evaluate this function using computer simulations of an equilibrium glass-forming liquid, and show that long range spatial correlations of displacements emerge and grow on cooling toward the mode coupling critical temperature.
, Glotzer, S.
and Poole, P.
Growing Spatial Correlations of Particle Displacements in a Simulated Liquid on Cooling Toward the Glass Transition, Physical Review Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=851553
(Accessed December 3, 2023)