346 citations · 2.5k across the 57 of their papers we have counts for
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Wave-packet spreading in disordered soft architected structures
Arnold Ngapasare, Georgios Theocharis, Olivier Richoux +2
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 this wor…
Nonlinear Topological Edge States: from Dynamic Delocalization to Thermalization
Bertin Many Manda, Rajesh Chaunsali, Georgios Theocharis +1
We consider a mechanical lattice inspired by the Su-Schrieffer-Heeger model along with cubic Klein-Gordon type nonlinearity. We investigate the long-time dynamics of the nonlinear…
Frequency map analysis of spatiotemporal chaos in the nonlinear disordered Klein-Gordon lattice
Charalampos Skokos, Enrico Gerlach, Sergej Flach
We study the characteristics of chaos evolution of initially localized energy excitations in the one-dimensional nonlinear disordered Klein-Gordon lattice of anharmonic oscillators…
Identifying localized and spreading chaos in nonlinear disordered lattices by the Generalized Alignment Index (GALI) method
Bob Senyange, Charalampos Skokos
Implementing the Generalized Alignment Index (GALI) method of chaos detection we investigate the dynamical behavior of the nonlinear disordered Klein-Gordon lattice chain in one sp…
Anomalous diffusion in single and coupled standard maps with extensive chaotic phase spaces
Henok Tenaw Moges, Thanos Manos, Charalampos Skokos
We investigate the long-term diffusion transport and chaos properties of single and coupled standard maps. We consider model parameters that are known to induce anomalous diffusion…
Stability Properties of 1-Dimensional Hamiltonian Lattices with Non-analytic Potentials
Anastasios Bountis, Konstantinos Kaloudis, Thomas Oikonomou +2
We investigate the local and global dynamics of two 1-Dimensional (1D) Hamiltonian lattices whose inter-particle forces are derived from non-analytic potentials. In particular, we…