3 papers
nlin.PS2020
Discrete solitons dynamics in -symmetric oligomers with complex-valued couplings
O. B. Kirikchi, N. Karjanto
We consider an array of double oligomers in an optical waveguide device. A mathematical model for the system is the coupled discrete nonlinear Schrödinger (NLS) equations, where th…
nlin.PS2018
Solitons in a chain of charge-parity-symmetric dimers
O. B. Kirikchi, B. A. Malomed, N. Karjanto +2
We consider an array of dual-core waveguides, which represent an optical realization of a chain of dimers, with an active (gain-loss) coupling between the cores, opposite signs of…
nlin.PS2018
Snakes and ghosts in a parity-time-symmetric chain of dimers
H. Susanto, R. Kusdiantara, N. Li +4
We consider linearly coupled discrete nonlinear Schrödinger equations with gain and loss terms and with a cubic-quintic nonlinearity. The system models a parity-time ()-s…