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.
It is then natural to examine the behavior of the solitary waves of the generalized ABS model under various external fields
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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.