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arXiv · 2006.05517

Non-Gaussian distribution of displacements for Lennard-Jones particles in equilibrium

Aleksandra Pachalieva·Alexander J. Wagner
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Abstract

Most meso-scale simulation methods assume Gaussian distributions of velocity-like quantities. These quantities are not true velocities, however, but rather time-averaged velocities or displacements of particles. We show that there is a large range of coarse-graining scales where the assumption of a Gaussian distribution of these displacements fails, and a more complex distribution is required to adequately express these distribution functions of displacements.

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Aleksandra Pachalieva, Alexander J. Wagner. 2020-06-09. Non-Gaussian distribution of displacements for Lennard-Jones particles in equilibrium. https://doi.org/10.1103/physreve.102.053310

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