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)
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