...optical angular momentum vortex solitons photorefractive crystals photonic lattice ordinary and extraordinary polarization of light surface solitons semi-discrete solitons light bullets quasi-solitons Anderson localization 2D Vortex Solitons Stabilized by Virtual Photonic Lattices...

...-quintic nonlinearity saturable nonlinearity sine-Gordon equation Josephson junctions Higgs equation pulsons Frenkel-Kontorova model discrete NLS equations Ablowitz-Ladik equation discrete solitons Hamiltonian Lagrangian variational approximation spatiotemporal collapse stabilization light...

... ). Stable 2D vortex solitons supported by the lattice potential In the limit of a very deep lattice potential, the continuous GP/NLS equation goes over into the discrete NLS equation. The fact that the latter two-dimensional discrete equation gives rise to stable discrete solitons with embedded vorticity...