Density oscillations in multi-component molecular mixtures
Statistical Mechanics
2008-03-21 v1
Abstract
The excitation spectrum of the density collective oscillations is computed for multi-component molecular mixtures both with Coulomb and (repulsive) short-range interactions. Distinct sound-like excitations appear, governed by the short-range interaction, which differ from the ordinary hydrodynamic sound. The dielectric function and the structure factor are also calculated. The "two-sounds phenomenon" can be understood by means of the predictions of this model.
Cite
@article{arxiv.0803.2950,
title = {Density oscillations in multi-component molecular mixtures},
author = {M. Apostol},
journal= {arXiv preprint arXiv:0803.2950},
year = {2008}
}
Comments
7 pages, 1 figure