期刊
PHYSICAL REVIEW LETTERS
卷 106, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.050402
关键词
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资金
- Army Research Office
- DARPA
- CUA
- Swiss national Science Foundation, NSF [DMR-07-05472, PHY-06-53514]
- AFOSR-MURI
- Alfred P. Sloan Foundation
We study the quench dynamics of a two-component ultracold Fermi gas from the weak into the strong interaction regime, where the short time dynamics are governed by the exponential growth rate of unstable collective modes. We obtain an effective interaction that takes into account both Pauli blocking and the energy dependence of the scattering amplitude near a Feshbach resonance. Using this interaction we analyze the competing instabilities towards Stoner ferromagnetism and pairing.
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