Haller, Elmar; Mark, Manfred; Hart, Russell; Danzl, Johann GIST Austria ; Reichsöllner, Lukas; Melezhik, Vladimir; Schmelcher, Peter; Nägerl, Hanns
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.
Physical Review Letters
We thank W. Zwerger for discussions and R. Grimm for generous support. We acknowledge funding by the Austrian Science Fund and by the European Union within the framework of the EuroQUASAR collective research project QuDeGPM. R. H. is supported by a Marie Curie Fellowship within FP7. P. S. acknowledges financial support by the DFG. Financial support by the Heisenberg-Landau Program is appreciated by P. S. and V. M.
Haller E, Mark M, Hart R, et al. Confinement-induced resonances in low-dimensional quantum systems. Physical Review Letters. 2010;104(15). doi:10.1103/PhysRevLett.104.153203
Haller, E., Mark, M., Hart, R., Danzl, J. G., Reichsöllner, L., Melezhik, V., … Nägerl, H. (2010). Confinement-induced resonances in low-dimensional quantum systems. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.104.153203
Haller, Elmar, Manfred Mark, Russell Hart, Johann G Danzl, Lukas Reichsöllner, Vladimir Melezhik, Peter Schmelcher, and Hanns Nägerl. “Confinement-Induced Resonances in Low-Dimensional Quantum Systems.” Physical Review Letters. American Physical Society, 2010. https://doi.org/10.1103/PhysRevLett.104.153203.
E. Haller et al., “Confinement-induced resonances in low-dimensional quantum systems,” Physical Review Letters, vol. 104, no. 15. American Physical Society, 2010.
Haller E, Mark M, Hart R, Danzl JG, Reichsöllner L, Melezhik V, Schmelcher P, Nägerl H. 2010. Confinement-induced resonances in low-dimensional quantum systems. Physical Review Letters. 104(15).
Haller, Elmar, et al. “Confinement-Induced Resonances in Low-Dimensional Quantum Systems.” Physical Review Letters, vol. 104, no. 15, American Physical Society, 2010, doi:10.1103/PhysRevLett.104.153203.