336 citations · 2.9k across the 45 of their papers we have counts for
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Randium: A minimal model of universal viscous liquid dynamics
Ulf R. Pedersen
When liquids are cooled and crystallization is avoided, their dynamics slow dramatically and the material eventually solidifies into an amorphous glass. Experiments show that chemi…
Theory of Generalized Hertzian Hyperspheres
Ulf R. Pedersen
While hard-sphere models form the foundation of theoretical condensed matter physics, real systems often exhibit some degree of softness. We present a theoretical and numerical stu…
Microscopic Theory of Density Scaling: Coarse-Graining in Space and Time
Jaehyeok Jin, David R. Reichman, Jeppe C. Dyre +1
Understanding the structure and dynamics of liquids is pivotal for the study of larger spatiotemporal processes, especially in glass-forming materials at low temperatures. Density…
Isomorph invariance in the liquid and plastic-crystal phases of asymmetric-dumbbell models
Eman Attia, Jeppe C. Dyre, Ulf R. Pedersen
We present a numerical study of the asymmetric dumbbell model consisting of ``molecules'' constructed as two different-sized Lennard-Jones spheres connected by a rigid bond. In ter…
An extreme case of density scaling: The Weeks-Chandler-Andersen system at low temperatures
Eman Attia, Jeppe C. Dyre, Ulf R. Pedersen
This paper studies numerically the Weeks-Chandler-Andersen (WCA) system, which is shown to obey hidden scale invariance with a density-scaling exponent that varies from below 5 to…
How a Supercooled Liquid Borrows Structure from the Crystal
Ulf Pedersen, Ian Douglass, Peter Harrowell
Using computer simulations, we establish that the structure of a supercooled binary atomic liquid mixture consists of common neighbour structures similar to those found in the equi…