Zobrazeno 1 - 10
of 215
pro vyhledávání: '"Palmero, F"'
We study systematically the scattering of solitons on localized impurities in the discrete nonlinear Schr\"odinger (DNLS) equation with a saturable nonlinearity. We show that, apart from the generic scenario of the outcome of the scattering process,
Externí odkaz:
http://arxiv.org/abs/2210.09450
Publikováno v:
In Physica D: Nonlinear Phenomena January 2024 457
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. W
Externí odkaz:
http://arxiv.org/abs/2002.05567
Autor:
Palmero, F., English, L. Q., Chen, Xuan-Lin, Li, Weilun, Cuevas-Maraver, Jesús, Kevrekidis, P. G.
Publikováno v:
Phys. Rev. E 99, 032206 (2019)
We observe dark and bright intrinsic localized modes (ILMs) or discrete breathers (DB) experimentally and numerically in a diatomic-like electrical lattice. The generation of dark ILMs by driving a dissipative lattice with spatially-homogenous amplit
Externí odkaz:
http://arxiv.org/abs/1811.04523
Intrinsic localized modes, also called discrete breathers, can exist under certain conditions in one-dimensional nonlinear electrical lattices driven by external harmonic excitations. In this work, we have studied experimentally the efectiveness of g
Externí odkaz:
http://arxiv.org/abs/1710.00167
We study discrete breathers in prototypical nonlinear oscillator networks subjected to non-harmonic zero-mean periodic excitations. We show how the generation of stationary and moving discrete breathers are optimally controlled by solely varying the
Externí odkaz:
http://arxiv.org/abs/1607.04630
We consider a chain of torsionally-coupled, planar pendula shaken horizontally by an external sinusoidal driver. It has been known that in such a system, theoretically modeled by the discrete sine-Gordon equation, intrinsic localized modes, also know
Externí odkaz:
http://arxiv.org/abs/1508.07152
Publikováno v:
AIP Conference Proceedings; 2024, Vol. 3094 Issue 1, p1-4, 4p
Autor:
Rodrigues, A. S., Kevrekidis, P. G., Carretero-González, R., Cuevas, J., Frantzeskakis, D. J., Palmero, F.
Publikováno v:
J. Phys.: Condens. Matter 26, 155801 (2014)
We consider the existence, stability and dynamics of the nodeless state and fundamental nonlinear excitations, such as vortices, for a quasi-two-dimensional polariton condensate in the presence of pumping and nonlinear damping. We find a series of in
Externí odkaz:
http://arxiv.org/abs/1308.6798
Autor:
English, L. Q., Palmero, F., Stormes, J. F., Cuevas, J., Carretero-González, R., Kevrekidis, P. G.
We report the observation of spontaneous localization of energy in two spatial dimensions in the context of nonlinear electrical lattices. Both stationary and traveling self-localized modes were generated experimentally and theoretically in a family
Externí odkaz:
http://arxiv.org/abs/1302.2215