Thirring Solitons in the presence of dispersion

Details Thirring Solitons in the presence of dispersion Thirring Solitons in the presence of dispersion

1998-03-10

arxiv.org/abs/physics/9803013v1

Phys.Rev.Lett. 80 (1998) 4169-4172

Physics

Optics

12 pages, Latex. To appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.80.4169

The effect of dispersion or diffraction on zero-velocity solitons is studied for the generalized massive Thirring model describing a nonlinear optical fiber with grating or parallel-coupled planar waveguides with misaligned axes. The Thirring solitons existing at zero dispersion/diffraction are shown numerically to be separated by a finite gap from three isolated soliton branches. Inside the gap, there is an infinity of multi-soliton branches. Thus, the Thirring solitons are structurally unstable. In another parameter region (far from the Thirring limit), solitons exist everywhere.

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