Exact solitons are constructed for a generalized two-parameter nonlinear Dirac model, with E/Q independent of the coupling g and stability predicted by the Vakhitov-Kolokolov criterion for kappa < 2.
We would like to know if the stability is linked with a single/double hump solution and whether the stability is linked to if E/Q> 1
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Solitary waves in a Two Parameter Family of Generalized Nonlinear Dirac Equations in $1+1$ Dimensions
Exact solitons are constructed for a generalized two-parameter nonlinear Dirac model, with E/Q independent of the coupling g and stability predicted by the Vakhitov-Kolokolov criterion for kappa < 2.