253 citations · 710 across the 15 of their papers we have counts for
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Matter-wave bright solitons in spin-orbit coupled Bose-Einstein condensates
V. Achilleos, D. J. Frantzeskakis, P. G. Kevrekidis +1
We study matter-wave bright solitons in spin-orbit (SO) coupled Bose-Einstein condensates (BECs) with attractive interatomic interactions. We use a multiscale expansion method to i…
PT-symmetric Double Well Potentials Revisited: Bifurcations, Stability and Dynamics
A. S. Rodrigues, K. Li, V. Achilleos +3
In this work we analyze PT-symmetric double-well potentials based on a two-mode picture. We reduce the problem into a PT-symmetric dimer and illustrate that the latter has effectiv…
Escape Dynamics in the Discrete Repulsive ϕ^4-Model
V. Achilleos, A. Álvarez, J. Cuevas +4
We study deterministic escape dynamics in the framework of the discrete Klein-Gordon modelwith a repulsive quartic on-site potential. Using a combination of analytical techniques,…
Dark solitons and vortices in PT-symmetric nonlinear media: from spontaneous symmetry breaking to nonlinear PT phase transitions
V. Achilleos, P. G. Kevrekidis, D. J. Frantzeskakis +1
We consider nonlinear analogues of Parity-Time (PT) symmetric linear systems exhibiting defocusing nonlinearities. We study the ground state and excited states (dark solitons and v…