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Coherent molecule formation in anharmonic potentials near confinement-induced resonances

MPG-Autoren
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Serwane,  Friedhelm
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;
Biophysical Chemistry, Institute of Physical Chemistry, University of Heidelberg, 69120 Heidelberg, Germany;

Externe Ressourcen

https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.110.203202
(beliebiger Volltext)

https://doi.org/10.1103/PhysRevLett.110.203202
(beliebiger Volltext)

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Zitation

Sala, S., Zürn, G., Lompe, T., Wenz, A. N., Murmann, S., Serwane, F., et al. (2013). Coherent molecule formation in anharmonic potentials near confinement-induced resonances. Physical Review Letters, 110: 203202, pp. 1-5. doi:10.1103/PhysRevLett.110.203202.


Zitierlink: https://hdl.handle.net/21.11116/0000-0000-7DF6-F
Zusammenfassung
We perform a theoretical and experimental study of a system of two ultracold atoms with tunable interaction in an elongated trapping potential. We show that the coupling of center-of-mass and relative motion due to an anharmonicity of the trapping potential leads to a coherent coupling of a state of an unbound atom pair and a molecule with a center of mass excitation. By performing the experiment with exactly two particles we exclude three-body losses and can therefore directly observe coherent molecule formation. We find quantitative agreement between our theory of inelastic confinement-induced resonances and the experimental results. This shows that the effects of center-of-mass to relative-motion coupling can have a significant impact on the physics of quantum systems near center-of-mass to relative-motion coupling resonances.