Year: 2020
Type: preprint
Abstract: One of the problems of periodic FPU-chains with alternating masses is whether significant interactions exist between the so-called (high frequency) optical and (low frequency) acoustical groups. We show that for $α$-chains with $4n$ and $8n$ particles ($n= 1, 2, \ldots$) we have significant interactions caused by external forcing. For $β$-chains with $4$ and $8$ particles the interactions are characterised by parametric forcing, the interactions are negligible.
Source: arXiv (Cornell University)
Authors: Bruggeman, Roelof, Verhulst, Ferdinand
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W3015873822