Microscopic sound waves in dense Lennard-Jones fluids
- 1 March 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 29 (3), 1602-1605
- https://doi.org/10.1103/physreva.29.1602
Abstract
Molecular-dynamics simulations of dense Lennard-Jones-like fluids show new evidence for the existence of sound waves with wavelengths comparable to the size of the atoms. The sound frequency vanishes for a small but finite region of wavelengths as predicted by kinetic theory, and appears to depend mainly on the repulsive part of the interaction potential.Keywords
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