Observation of resonant scattering between ultracold heteronuclear Feshbach molecules
| Autor: | Xin Ye, Fudong Wang, Mingyang Guo, Dajun Wang, Doerte Blume |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
inorganic chemicals
Condensed Matter::Quantum Gases Physics Condensed Matter::Other Scattering Inelastic collision chemistry.chemical_element Scattering length 01 natural sciences Molecular physics Resonance (particle physics) 010305 fluids & plasmas Rubidium Heteronuclear molecule chemistry 0103 physical sciences Physics::Atomic and Molecular Clusters Molecule Condensed Matter::Strongly Correlated Electrons Physics::Atomic Physics 010306 general physics Boson |
| Zdroj: | Physical Review A. 100 |
| ISSN: | 2469-9934 2469-9926 |
| DOI: | 10.1103/physreva.100.042706 |
| Popis: | We report the observation of a dimer-dimer inelastic collision resonance for ultracold Feshbach molecules made of bosonic sodium and rubidium atoms. This resonance, which we attribute to the crossing of the dimer-dimer threshold with a heteronuclear tetramer state, manifests itself as a pronounced inelastic loss peak of dimers when the interspecies scattering length between the constituent atoms is tuned. Near this resonance, a strong modification of the temperature dependence of the dimer-dimer scattering is observed. Our result provides insight into the heteronuclear four-body system consisting of heavy and light bosons and offers the possibility of investigating ultracold molecules with tunable interactions. |
| Databáze: | OpenAIRE |
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