Article
Nonlinear edge modes in a honeycomb electrical lattice near the Dirac points
Author/s | Palmero Acebedo, Faustino
English, Lars Q. Cuevas-Maraver, Jesús Kevrekidis, Panayotis G. |
Department | Universidad de Sevilla. Departamento de Física Aplicada I |
Publication Date | 2020-09 |
Deposit Date | 2020-09-09 |
Published in |
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Abstract | We examine - both experimentally and numerically - a two-dimensional nonlinear driven electrical lattice
with honeycomb structure. Drives are considered over a range of frequencies both outside (below and above)
and ... We examine - both experimentally and numerically - a two-dimensional nonlinear driven electrical lattice with honeycomb structure. Drives are considered over a range of frequencies both outside (below and above) and inside the band of linear modes. We identify a number of discrete breathers both existing in the bulk and also (predominantly) ones arising at the domain boundaries, localized either along the arm-chair or along the zig-zag edges. The types of edge-localized breathers observed and computed emerge in distinct frequency bands near the Dirac-point frequency of the dispersion surface while driving the lattice subharmonically (in a spatially homogeneous manner). These observations/computations can represent a starting point towards the exploration of the interplay of nonlinearity and topology in an experimentally tractable system such as the honeycomb electrical lattice. |
Project ID. | MAT2016- 79866-R
VI PPITUS |
Citation | Palmero Acebedo, F., English, L.Q., Cuevas-Maraver, J. y Kevrekidis, P.G. (2020). Nonlinear edge modes in a honeycomb electrical lattice near the Dirac points. Physics Letters A, 384 (26), 126664-. |
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