Extreme wave events for a nonlinear Schrödinger equation with linear damping and Gaussian driving

G Fotopoulos, DJ Frantzeskakis, NI Karachalios… - … in Nonlinear Science …, 2020 - Elsevier
We perform a numerical study of the initial-boundary value problem, with vanishing
boundary conditions, of a driven nonlinear Schrödinger equation (NLS) with linear damping …

Nonlinear instability and solitons in a self‐gravitating fluid

GN Koutsokostas, S Sypsas, O Evnin… - … Methods in the …, 2024 - Wiley Online Library
We study a spherical, self‐gravitating fluid model, which finds applications in cosmic
structure formation. We argue that since the system features nonlinearity and gravity …

Collapse dynamics for the discrete nonlinear Schrödinger equation with gain and loss

G Fotopoulos, NI Karachalios, V Koukouloyannis… - … in Nonlinear Science …, 2019 - Elsevier
We discuss the finite-time collapse, also referred as blow-up, of the solutions of a discrete
nonlinear Schrödinger (DNLS) equation incorporating linear and nonlinear gain and loss …

Excitation of Peregrine-type waveforms from vanishing initial conditions in the presence of periodic forcing

NI Karachalios, P Kyriazopoulos… - … für Naturforschung A, 2019 - degruyter.com
We show by direct numerical simulations that spatiotemporally localised waveforms, strongly
reminiscent of the Peregrine rogue wave, can be excited by vanishing initial conditions for …

[PDF][PDF] Inviscid limit of linearly damped and forced nonlinear Schrodinger equations

N Gialelis - 2020 - digital.library.txstate.edu
We approximate a solution of the nonlinear Schrödinger Cauchy problem by solutions of the
linearly damped and driven nonlinear Schrödinger Cauchy problems in any open subset of …

[PDF][PDF] CAREER-EMPLOYMENT

D Frantzeskakis - scholar.uoa.gr
Research interests. Nonlinear waves and solitons (existence, formation, stability, dynamics,
interactions and manipulation), with applications to various physical contexts. These include …

Exciting extreme events in the damped and AC-driven NLS equation through plane-wave initial conditions

S Diamantidis, TP Horikis… - Chaos: An Interdisciplinary …, 2021 - pubs.aip.org
We investigate, by direct numerical simulations and for certain parametric regimes, the
dynamics of the damped and forced nonlinear Schrödinger (NLS) equation in the presence …

[PDF][PDF] On the solvability and the inviscid limit of Cauchy problems for certain classes of the nonlinear Schrödinger equation

N Gialelis - 2019 - pergamos.lib.uoa.gr
The non-linear (in particular the semi-linear) Schrödinger equation, very often referred to by
the acronym NLSE, is a universal model describing the evolution of complex field envelopes …

Δυναμική μη-γραμμικών συστημάτων πλέγματος

Κ Βέτας - 2018 - hellanicus.lib.aegean.gr
Σκοπός αυτής της εργασίας, είναι η μελέτη συστημάτων πλέγματος, που αποτελούν
θεμελιώδη μοντέλα για διάφορα μη γραμμικά φαινόμενα σε διακριτά μέσα. Τα ερωτήματα που …

[引用][C] Αρχές Κβαντικής Φυσικής για την κυματική διάδοση σε κρυσταλλικά πλέγματα και η διακριτή εξίσωση Schrödinger

Π Δέτσιος