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

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Parent link:	Physical Review E Vol. 107, iss. 3.— 2023.— [034214, 10 p.]
Korporativní autor:	Национальный исследовательский Томский политехнический университет Юргинский технологический институт
Další autoři:	Naumov E. K., Bebikhov Yu. V., Ekomasov E. G., Soboleva E. G. Elvira Gomerovna, Dmitriev S. V.
Shrnutí:	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
Jazyk:	angličtina
Vydáno:	2023
Témata:	электронный ресурс труды учёных ТПУ
On-line přístup:	https://doi.org/10.1103/PhysRevE.107.034214
Médium:	Elektronický zdroj Kapitola
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669433

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