Discrete breathers in square lattices from delocalized nonlinear vibrational modes; Physical Review E; Vol. 107, iss. 3

Discrete breathers in square lattices from delocalized nonlinear vibrational modes; Physical Review E; Vol. 107, iss. 3

Detalhes bibliográficos
Parent link:Physical Review E
Vol. 107, iss. 3.— 2023.— [034214, 10 p.]
Autor Corporativo: Национальный исследовательский Томский политехнический университет Юргинский технологический институт
Outros Autores: Naumov E. K., Bebikhov Yu. V., Ekomasov E. G., Soboleva E. G. Elvira Gomerovna, Dmitriev S. V.
Resumo:Title screen
Standing and moving discrete breathers (or equally, intrinsic localized modes) in a square β-Fermi-Pasta-Ulam-Tsingou lattice are obtained by applying localizing functions to the delocalized nonlinear vibrational modes (DNVMs) found earlier by Ryabov and Chechin. The initial conditions used in our study do not correspond to exact spatially localized solutions, but make it possible to obtain long-lived quasibreathers. The approach employed in this work can easily be used to search for quasibreathers in three-dimensional crystal lattices, for which DNVMs with frequencies outside the phonon spectrum are known.
Режим доступа: по договору с организацией-держателем ресурса
Idioma:inglês
Publicado em: 2023
Assuntos:
электронный ресурс
труды учёных ТПУ
Acesso em linha:https://doi.org/10.1103/PhysRevE.107.034214
Formato: Recurso Electrónico Capítulo de Livro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669433

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