期刊
PHYSICAL REVIEW A
卷 85, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.85.063615
关键词
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资金
- NSF
- ONR
- AFOSR MURI grant
- ARO [W911NF-07-1-0493]
- DARPA
- Samsung Scholarship
- NSERC
- Direct For Mathematical & Physical Scien
- Division Of Physics [0969731] Funding Source: National Science Foundation
Fermi gases with repulsive interactions are characterized by measuring their compressibility as a function of interaction strength. The compressibility is obtained from in-trap density distributions monitored by phase-contrast imaging. For interaction parameters k(F) a > 0.25, fast decay of the gas prevents the observation of equilibrium profiles. For smaller interaction parameters, the results are adequately described by first-order perturbation theory. We have developed a phase-contrast imaging method that compensates for dispersive distortions of the images.
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