336 citations · 2.9k across the 45 of their papers we have counts for
45 papers
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…
Comparing zero-parameter theories for the WCA and harmonic-repulsive melting lines
Jeppe C. Dyre, Ulf R. Pedersen
The melting line of the Weeks-Chandler-Andersen (WCA) system was recently determined accurately and compared to the predictions of four analytical hard-sphere approximations [Attia…
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…
Comparing four hard-sphere approximations for the low-temperature WCA melting line
Eman Attia, Jeppe C. Dyre, Ulf R. Pedersen
By combining interface-pinning simulations with numerical integration of the Clausius-Clapeyron equation we determine accurately the melting-line coexistence pressure and fluid/cry…