The dynamics of self-interacting quasiparticles in 1Dsystems with long-range dispersive interactions isexpressed in terms of a nonlocal nonlinear Schrödingerequation. Two branches of stationary solutions are found.The new branch which contains a cusp soliton is shown to beunstable and blowup is observed. Moving solitons radiatewith a wavelength proportional to the velocity.
|Journal||Physics Letters A|
|Publication status||Published - 1996|