First and second sound in disordered strongly nonlinear lattices: numerical study
- We study numerically secondary modes on top of a chaotic state in disordered nonlinear lattices. Two basic models are considered, with or without a local on-site potential. By performing periodic spatial modulation of displacement and kinetic energy, and following the temporal evolution of the corresponding spatial profiles, we reveal different modes which can be interpreted as first and second sound.
| Author details: | Arkadij PikovskijORCiDGND |
|---|---|
| DOI: | https://doi.org/10.1088/1742-5468/2015/08/P08007 |
| ISSN: | 1742-5468 |
| Title of parent work (English): | Journal of statistical mechanics: theory and experiment |
| Publisher: | IOP Publ. Ltd. |
| Place of publishing: | Bristol |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2015 |
| Publication year: | 2015 |
| Release date: | 2017/03/27 |
| Tag: | connections between chaos and statistical physics; disordered systems (theory) |
| Number of pages: | 10 |
| Funding institution: | Ministry of Education and Science of the Russian Federation [02.49.21.0003]; Lobachevsky State University of Nizhni Novgorod [02.49.21.0003]; INFN |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Peer review: | Referiert |
