Quantum degenerate Bose-Fermi mixture of chemically different atomic species with widely tunable interactions
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SCOPUS
- Title
- Quantum degenerate Bose-Fermi mixture of chemically different atomic species with widely tunable interactions
- Authors
- Park, Jee Woo; Wu, Cheng-Hsun; Santiago, Ibon; Tiecke, Tobias G.; Will, Sebastian; Ahmadi, Peyman; Zwierlein, Martin W.
- Date Issued
- 2012-05-09
- Publisher
- American Physical Society
- Abstract
- We have created a quantum degenerate Bose-Fermi mixture of Na-23 and K-40 with widely tunable interactions via broad interspecies Feshbach resonances. Over 30 Feshbach resonances between Na-23 and K-40 were identified, including p-wave multiplet resonances. The large and negative triplet background scattering length between Na-23 and K-40 causes a sharp enhancement of the fermion density in the presence of a Bose condensate. As explained via the asymptotic bound-state model, this strong background scattering leads to wide Feshbach resonances observed at low magnetic fields. Our work opens up the prospect to create chemically stable, fermionic ground-state molecules of Na-23-K-40, where strong, long-range dipolar interactions would set the dominant energy scale.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/103534
- DOI
- 10.1103/PhysRevA.85.051602
- ISSN
- 1050-2947
- Article Type
- Article
- Citation
- Physical Review A - Atomic, Molecular, and Optical Physics, vol. 85, no. 5, 2012-05-09
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