The DOI matches its Crossref record.
Observation of a Strongly Interacting Degenerate Fermi Gas of Atoms
Open accessAbstract
We report on the observation of a highly degenerate, strongly interacting Fermi gas of atoms. Fermionic lithium-6 atoms in an optical trap are evaporatively cooled to degeneracy using a magnetic field to induce strong, resonant interactions. Upon abruptly releasing the cloud from the trap, the gas is observed to expand rapidly in the transverse direction while remaining nearly stationary in the axial direction. We interpret the expansion dynamics in terms of collisionless superfluid and collisional hydrodynamics. For the data taken at the longest evaporation times, we find that collisional hydrodynamics does not provide a satisfactory explanation, whereas superfluidity is plausible.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
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
Georgescu, I. M., Ashhab, S., & Nori, F. (2014) · Reviews of Modern Physics · doi:10.1103/revmodphys.86.153 · Cited by 2,932
“The continuous tunability of the interaction strength also allowed access to the so-called unitarity regime (O’Hara et al., 2002), where the interaction strength is comparable to the Fermi energy, meaning that there is a single energy scale in the problem.”
BackgroundQuantum simulations with ultracold quantum gases
Bloch, I., Dalibard, J., & Nascimbène, S. (2012) · Nature Physics · doi:10.1038/nphys2259 · Cited by 2,339
Nearly perfect fluidity: from cold atomic gases to hot quark gluon plasmas
Schäfer, T., & Teaney, D. (2009) · Reports on Progress in Physics · doi:10.1088/0034-4885/72/12/126001 · Cited by 438
Shape-Controlled Synthesis and Shape-Induced Texture of MnFe 2 O 4 Nanoparticles
Zeng, H., Rice, P. M., Wang, S. X., & Sun, S. (2004) · Journal of the American Chemical Society · doi:10.1021/ja045911d · Cited by 369
Metadata
- Authors
- O'Hara, K. M., Hemmer, S. L., Gehm, M. E., Granade, S. R., & Thomas, J. E.
- Venue
- Science
- Published
- 2002-12-13
- Volume
- 298
- Issue
- 5601
- Pages
- 2179-2182
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2144293283
- Cited by
- 1,040
- References
- 0
- FWCI
- 57.30
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Observation of a Strongly Interacting Degenerate Fermi Gas of Atoms. https://app.cochat.ai/papers/10.1126/science.1079107
- The paper
- O'Hara, K. M., Hemmer, S. L., Gehm, M. E., Granade, S. R., & Thomas, J. E. (2002). Observation of a Strongly Interacting Degenerate Fermi Gas of Atoms. Science. https://doi.org/10.1126/science.1079107
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
