Nonlinear spin and pseudo-spin symmetric Dirac equations

AD Alhaidari - International Journal of Theoretical Physics, 2014 - Springer
Nonlinear Dirac equations are obtained by variation of the spinor action whose Lagrangian
components have the same conformal degree and the coupling parameter of the self …

Ring Dirac Solitons in Nonlinear Topological Lattices

AN Poddubny, DA Smirnova - arXiv preprint arXiv:1805.03819, 2018 - arxiv.org
We study solitons of the two-dimensional nonlinear Dirac equation with asymmetric cubic
nonlinearity. We show that, with the nonlinearity parameters specifically tuned, a high …