We report on the observation of confinement-induced resonances in strongly interacting quantum-gas systems with tunable interactions for one-and two-dimensional geometry. Atom-atom scattering is substantially modified when the s-wave scattering length approaches the length scale associated with the tight transversal confinement, leading to characteristic loss and heating signatures. Upon introducing an anisotropy for the transversal confinement we observe a splitting of the confinement-induced resonance. With increasing anisotropy additional resonances appear. In the limit of a two-dimensional system we find that one resonance persists.
- quantum systems
- confinement-induced resonances
- quantum-gas systems
Haller, E., Mark, M. J., Hart, R., Danzl, J. G., Reichsöllner, L., Melezhik, V., Schmelcher, P., & Nägerl, H-C. (2010). Confinement-induced resonances in low-dimensional quantum systems. Physical Review Letters, 104(15), . https://doi.org/10.1103/PhysRevLett.104.153203