107 citations · 489 across the 14 of their papers we have counts for
14 papers
Integrability and trajectory confinement in -symmetric waveguide arrays
I V Barashenkov, Frank Smuts, Alexander Chernyavsky
We consider -symmetric ring-like arrays of optical waveguides with purely nonlinear gain and loss. Regardless of the value of the gain-loss coefficient, these systems…
Stationary through-flows in a Bose-Einstein condensate with a PT-symmetric impurity
Dmitry A. Zezyulin, I. V. Barashenkov, Vladimir V. Konotop
Superfluid currents in the boson condensate with a source and sink of particles are modelled by the PT-symmetric Gross-Pitaevskii equation with a complex potential. We demonstrate…
Jamming anomaly in -symmetric systems
I. V. Barashenkov, Dmitry A. Zezyulin, Vladimir V. Konotop
The Schrödinger equation with a -symmetric potential is used to model an optical structure consisting of an element with gain coupled to an element with loss. At low…
Blow-up regimes in the - and the -dimer
I V Barashenkov, G S Jackson, S Flach
In the actively coupled () pair of waveguides, the growth of small perturbations is saturated by the focussing nonlinearity that couples the linearly growing to the l…
Actively coupled optical waveguides
N. V. Alexeeva, I. V. Barashenkov, K. Rayanov +1
We consider light propagation through a pair of nonlinear optical waveguides with absorption, placed in a medium with power gain. The active medium boosts the in-phase component of…
Anisotropic Subdiffractive Solitons
Ramon Herrero, I. V. Barashenkov, N. V. Alexeeva +1
We study solitons in the two-dimensional defocusing nonlinear Schroedinger equation with the spatio-temporal modulation of the external potential. The spatial modulation is due to…