Suppression of Quantum Scattering in Strongly Confined Systems
arXiv:quant-ph/0610265 · doi:10.1103/PhysRevLett.97.193203
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.
3 figs, Phys. Rev. Lett. (early November issue)
References in corpus (4)
- Matter-wave interferometry in a double well on an atom chip
- Observation of dipole-dipole interaction in a degenerate quantum gas
- Controlling collisions of ultracold atoms with dc electric fields
- Confinement-induced resonances for a two-component ultracold atom gas in arbitrary quasi-one-dimensional traps