title: Suppression of quantum scattering in strongly confined systems.
abstract: We demonstrate that scattering of particles strongly interacting in three dimensions (3D) can be suppressed at low energies in a quasi-one-dimensional (1D) confinement. The underlying mechanism is the interference of the s- and p-wave scattering contributions with large s- and p-wave 3D scattering lengths being a necessary prerequisite. This low-dimensional quantum scattering effect might be useful in "interacting" quasi-1D ultracold atomic gases, guided atom interferometry, and impurity scattering in strongly confined quantum wire-based electronic devices.
authors.affiliation: Departamento de Pesquisas, Altanova, R. Silva Teles 712, CEP 03026-000, Brás, São Paulo (SP), Brazil. ji_il_kim@yahoo.com
authors.forename: J I
authors.initials: JI
authors.lastname: Kim
authors.forename: V S
authors.initials: VS
authors.lastname: Melezhik
authors.forename: P
authors.initials: P
authors.lastname: Schmelcher