Inelastic Confinement-Induced Resonances in Low-Dimensional Quantum Systems

TL;DR

This paper presents a theoretical model explaining confinement-induced resonances in low-dimensional quantum systems, aligning with recent experiments and resolving previous theoretical discrepancies.

Contribution

It introduces a model accounting for molecule formation via center-of-mass and relative motion coupling, verified by ab initio calculations.

Findings

Resonance positions in 1D and 2D confinement match experimental data

Model resolves contradictions between experiments and earlier theories

Predicts confinement-induced resonances accurately in low-dimensional systems

Abstract

A theoretical model is presented describing the confinement-induced resonances observed in the recent loss experiment of Haller et al. [Phys. Rev. Lett. 104, 153203 (2010)]. These resonances originate from possible molecule formation due to the coupling of center-of-mass and relative motion. A corresponding model is verified by ab initio calculations and predicts the resonance positions in 1D as well as in 2D confinement in agreement with the experiment. This resolves the contradiction of the experimental observations to previous theoretical predictions.