title: Soliton tunneling with sub-barrier kinetic energies.
abstract: We investigate (theoretically and numerically) the dynamics of a soliton moving in an asymmetrical potential well with a finite barrier. For large values of the width of the well, the width of the barrier, and/or the height of the barrier, the soliton behaves classically. On the other hand, we obtain the conditions for the existence of soliton tunneling with sub-barrier kinetic energies. We apply these results to the study of soliton propagation in disordered systems.
authors.affiliation: Centro de Física, Instituto Venezolano de Investigaciones Científicas, Apartado Postal 21827, Caracas 1020-A, Venezuela.
authors.forename: J A
authors.initials: JA
authors.lastname: González
authors.forename: A
authors.initials: A
authors.lastname: Bellorín
authors.forename: L E
authors.initials: LE
authors.lastname: Guerrero