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Просмотр Mathematics по автору "d6dc9986-e50b-438b-a45e-361aac72efbc"
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Antonopoulos, Chris G.; Skokos, Charalampos; Bountis, Tassos; Flach, Sergej
(arXiv, 2018-03-19)
In the study of subdiffusive wave-packet spreading in disordered Klein-
Gordon (KG) nonlinear lattices, a central open question is whether the
motion continues to be chaotic despite decreasing densities, or tends to
become ...
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Kominis, Yannis; Bountis, Tassos; Flach, Sergej
(Scientific Reports, 2016-09-19)
We consider the asymmetric active coupler (AAC) consisting of two coupled dissimilar waveguides with
gain and loss. We show that under generic conditions, not restricted by parity-time symmetry, there
exist finite-power, ...
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Kominis, Yannis; Kovanis, Vassilios; Bountis, Tassos
(arXiv, 2018-03-07)
Coupled semiconductor lasers are systems possessing complex dynamics that are interesting for
numerous applications in photonics. In this work, we investigate the existence and the stability of
asymmetric phase-locked ...
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Christodoulidi, H.; Bountis, Tassos; Drossos, L.
(arXiv, 2018-04)
We examine the role of long–range interactions on the dynamical and statistical properties of two
1D lattices with on–site potentials that are known to support discrete breathers: the Klein–Gordon
(KG) lattice which ...
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Anastassiou, Stavros; Bountis, Tassos; B¨acker, Arnd
(arXiv, 2017-09)
An interesting problem in solid state physics is to compute discrete breather
solutions in N coupled 1–dimensional Hamiltonian particle chains and investigate
the richness of their interactions. One way to do this is to ...
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Bountis, Tassos; Vanhaecke, Pol
(Physics Letters A, 2016-09)
We use a strong version of the Painlevé property to discover and characterize a new class of n-dimensional Hamiltonian Lotka–Volterra systems, which turn out to be Liouville integrable as well as superintegrable. These ...
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Kominis, Yannis; Kovanis, Vassilios; Bountis, Tassos
(arXiv, 2018-08)
The fundamental active photonic dimer consisting of two coupled quantum well lasers is inves-
tigated in the context of the rate equation model. Spectral transition properties and exceptional
points are shown to occur ...
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Kominis, Yannis; Bountis, Tassos; Flach, Sergej
(Physical Review A, 2017-06-21)
We analyze the stability of a non-Hermitian coupler with respect to modulational inhomogeneous perturbations
in the presence of unbalanced gain and loss. At the parity-time (PT ) symmetry point the coupler is unstable.
Suitable ...