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Measurement ofp-Wave Threshold Law Using Evaporatively Cooled Fermionic Atoms
Open accessAbstract
We have measured independently both $s$-wave and $p$-wave cross-dimensional thermalization rates for ultracold ${}^{40}\mathrm{K}$ atoms held in a magnetic trap. These measurements reveal that this fermionic isotope has a large positive $s$-wave triplet scattering length in addition to a low temperature $p$-wave shape resonance. We have measured directly the $p$-wave threshold law which, combined with the Fermi statistics, dramatically suppresses elastic collision rates at low temperatures. In addition, we present initial evaporative cooling results that make possible these collision measurements and are a precursor to achieving quantum degeneracy in this neutral, low-density Fermi system.
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Citations
Cited by
Many-body physics with ultracold gases
Bloch, I., Dalibard, J., & Zwerger, W. (2008) · Reviews of Modern Physics · doi:10.1103/revmodphys.80.885 · Cited by 8,114
Ultracold Molecules under Control!
Quéméner, G., & Julienne, P. S. (2012) · Chemical Reviews · doi:10.1021/cr300092g · Cited by 406
Metadata
- Authors
- DeMarco, B., Bohn, J. L., Burke, J. P., Holland, M., & Jin, D. S.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1999-05-24
- Volume
- 82
- Issue
- 21
- Pages
- 4208-4211
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2048718109
- Cited by
- 169
- References
- 0
- FWCI
- 11.90
- Type
- journal article
- Language
- en
- Open access
- green
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- CoChat. (2026). Citation check: Measurement ofp-Wave Threshold Law Using Evaporatively Cooled Fermionic Atoms. https://app.cochat.ai/papers/10.1103/physrevlett.82.4208
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- DeMarco, B., Bohn, J. L., Burke, J. P., Holland, M., & Jin, D. S. (1999). Measurement ofp-Wave Threshold Law Using Evaporatively Cooled Fermionic Atoms. Physical Review Letters. https://doi.org/10.1103/physrevlett.82.4208
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