Coherent Molecule Formation in Anharmonic Potentials Near Confinement-Induced Resonances
| Autor: | A. N. Wenz, G. Zürn, Alejandro Saenz, Friedhelm Serwane, Simon Murmann, Thomas Lompe, Selim Jochim, Simon Sala |
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| Rok vydání: | 2013 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Anharmonicity FOS: Physical sciences General Physics and Astronomy 7. Clean energy 01 natural sciences 3. Good health 010305 fluids & plasmas Coupling (physics) Quantum Gases (cond-mat.quant-gas) Ultracold atom 0103 physical sciences Atom Molecule Center of mass Atomic physics Condensed Matter - Quantum Gases 010306 general physics Quantum Excitation |
| Zdroj: | Physical Review Letters |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.110.203202 |
| Popis: | 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 quasi-1D quantum systems. 7 pages, 4 figures |
| Databáze: | OpenAIRE |
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