title: Bifurcation of gap solitons through catastrophe theory.
abstract: In the theory of optical gap solitons, slowly-moving finite-amplitude Lorentzian solutions are found to mediate the transition from bright to coexistent dark-antidark solitary wave pairs when the laser frequency is detuned out of the proper edge of a dynamical photonic band gap. Catastrophe theory is applied to give a geometrical description of this strongly asymmetrical "morphing" process.
authors.affiliation: Department of Engineering, University of Ferrara, Via Saragat 1, 44100 Ferrara, Italy.
authors.forename: C
authors.initials: C
authors.lastname: Conti
authors.forename: S
authors.initials: S
authors.lastname: Trillo