Vibrational spectra in glasses
无序系统与神经网络
2009-11-07 v1
摘要
The findings of X-ray and neutron scattering experiments on amorphous systems are interpreted within the framework of the theory of Euclidean random matrices. This allows to take into account the topological nature of the disorder, a key ingredient which strongly affects the vibrational spectra of those systems. We present a resummation scheme for a perturbative expansion in the inverse particle density, allowing an accurate analytical computation of the dynamical structure factor within the range of densities encountered in real systems.
引用
@article{arxiv.cond-mat/0104433,
title = {Vibrational spectra in glasses},
author = {T. S. Grigera and V. Martin-Mayor and G. Parisi and P. Verrocchio},
journal= {arXiv preprint arXiv:cond-mat/0104433},
year = {2009}
}
备注
Talk given at the '8th International Workshop on Disordered Systems' Andalo, Trento, 12-15 March 2001