K. Hayata et M. Koshiba, BRIGHT-KINK SYMBIONS RESULTING FROM THE COMBINED EFFECT OF SELF-TRAPPING AND INTRAPULSE STIMULATED RAMAN-SCATTERING, Journal of the Optical Society of America. B, Optical physics, 11(1), 1994, pp. 61-63
An intrafield symbiotic form of a bright soliton and a kink soliton (a
symbion) is found in the framework of the Hartree approximation for a
generalized nonlinear Schrodinger equation that includes the effects
of intrapulse stimulated Raman scattering and self-steepening. Algebra
ically the symbion can be expressed as the product of the two fields;
its eigenvalue and stationary-field distribution are determined analyt
ically in a self-consistent fashion.