Contribution of transverse modes to the dynamics of density fluctuations
Soft Condensed Matter
2015-09-11 v1
Abstract
The transverse and longitudinal current correlation functions are evaluated in liquid and amorphous sodium by computer simulation. The study of the corresponding spectra as a function of the wavevector allows the evaluation of a dispersion curve for their peak position. The results are compared with recent experimental findings [PNAS 107, 21985 (2010)], obtained by a new analysis of measured by inelastic X-ray scattering in liquid and polycrystalline sodium. A substantial agreement between experimental and computer simulation results is found. The analysis of the line widths supports the Vibration-Transit theory picture of the dynamics in liquids.
Keywords
Cite
@article{arxiv.1509.03255,
title = {Contribution of transverse modes to the dynamics of density fluctuations},
author = {Giulia De Lorenzi-Venneri and Renzo Vallauri},
journal= {arXiv preprint arXiv:1509.03255},
year = {2015}
}
Comments
4 pages, 5 figures, 16 references