Discrete breathers in square lattices from delocalized nonlinear vibrational modes

Bibliographic Details
Parent link:	Physical Review E Vol. 107, iss. 3.— 2023.— [034214, 10 p.]
Corporate Author:	Национальный исследовательский Томский политехнический университет Юргинский технологический институт
Other Authors:	Naumov E. K., Bebikhov Yu. V., Ekomasov E. G., Soboleva E. G. Elvira Gomerovna, Dmitriev S. V.
Summary:	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
Published:	2023
Subjects:	электронный ресурс труды учёных ТПУ
Online Access:	https://doi.org/10.1103/PhysRevE.107.034214
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669433

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