Instability dynamics of nonlinear normal modes in the Fermi–Pasta–Ulam–Tsingou chains

Instability dynamics of nonlinear normal modes in the Fermi–Pasta–Ulam–Tsingou chains

Nonlinear normal modes are periodic orbits that survive in nonlinear chains, whose instability plays a crucial role in the dynamics of many-body Hamiltonian systems toward thermalization. Here we focus on how the stability of nonlinear modes depends on the perturbation strength and the system size t...

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Bibliographic Details
Main Authors: Liangtao Peng, Weicheng Fu, Yong Zhang, Hong Zhao
Format: Article
Language:English
Published: IOP Publishing 2022-01-01
Series:New Journal of Physics
Subjects:
Fermi–Pasta–Ulam–Tsingou chains
nonlinear normal modes
instability dynamics
Floquet theory
Online Access:https://doi.org/10.1088/1367-2630/ac8ac3

Internet

https://doi.org/10.1088/1367-2630/ac8ac3

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