We present and validate simple and efficient methods to estimate the chaoticity of orbits in
low-dimensional conservative dynamical systems, namely, autonomous Hamiltonian …

Abstract Implementing the Generalized Alignment Index (GALI) method of chaos detection
we investigate the dynamical behavior of the nonlinear disordered Klein–Gordon lattice …

We reveal the generic characteristics of wave-packet delocalization in two-dimensional
nonlinear disordered lattices by performing extensive numerical simulations in two basic …

Abstract The Fermi–Pasta–Ulam–Tsingou recurrence (FPUT) refers to the property of a multi-
mode nonlinear system to return to the initial states after complex stages of evolution. FPUT …

Heat conduction through a disordered Fermi-Pasta-Ulam-β (DFPU-β) chain is studied. The
presence of disorder makes the heat current behave significantly different from that of the …

We study the dynamical and chaotic behavior of a disordered one-dimensional elastic
mechanical lattice, which supports translational and rotational waves. The model used in …

We study the characteristics of chaos evolution of initially localized energy excitations in the
one-dimensional nonlinear disordered Klein–Gordon lattice of anharmonic oscillators, by …

We explore the connection between chaos, thermalization, and ergodicity in a linear chain of
N interacting dipoles. Starting from the ground state, and considering chains of different …

In a two-core optical fiber (TCF), the linear coupling coefficient between the two cores in
general varies with the optical wavelength, a phenomenon known as coupling coefficient …

We investigate the dynamical properties of a strongly disordered micropolar lattice made up
of cubic block units. This phononic lattice model supports both transverse and rotational …