9 papers
Correlated many-body quantum dynamics of the Peregrine soliton
D. Diplaris, G. A. Bougas, P. G. Kevrekidis +3
We explore the correlated dynamics underlying the formation of the quantum Peregrine soliton, a prototypical rogue-wave excitation, utilizing interaction quenches from repulsive to…
Solitary waves and vortices in a Nonlinear Schrödinger equation with ponderomotive nonlinearity
D. K. Campbell, J. Cuevas-Maraver, R. Goh +1
In the present work we revisit a ponderomotive nonlinearity model used to examine self-trapped laser beams in plasma. Upon briefly considering the exact stationary 1D solutions of…
Pattern formation in ring condensates subjected to bichromatic driving
Premabrata Manna, S. I. Mistakidis, P. G. Kevrekidis +1
We investigate the dynamical formation of nonlinear patterns in one-dimensional ring condensates under bichromatic periodic modulation of the interaction strength. The stability ph…
On a Klein-Gordon Reduction for Oscillons
A. G. Stefanov, M. Stanislavova, J. Cuevas-Maraver +1
In the present work we examine the dynamics of a model for oscillons in 1-dimensional spacetime field theories with a cubic nonlinearity. We utilize a reduction of the model to fir…
Stability and dynamics of nonlinear excitations in a two-dimensional droplet-bearing environment
G. Bougas, G. C. Katsimiga, P. G. Kevrekidis +1
We unravel stationary states in the form of dark soliton stripes, bubbles, and kinks embedded in a two-dimensional droplet-bearing setting emulated by an extended Gross-Pitaevskii…
Global Bifurcations in a Damped-Driven Diatomic Granular Crystal
D. Pozharskiy, I. G. Kevrekidis, P. G. Kevrekidis
We revisit here the dynamics of an engineered dimer granular crystal under an external periodic drive in the presence of dissipation. Earlier findings included a saddle-node bifurc…