Compressibility of an ultracold Fermi gas with repulsive interactions
Name
Lee-2012-Compressibility of an ultracold Fermi gas with repulsive interactions.pdf
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685.27 KB
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Checksum (MD5)
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Author(s)
Choi, Jae-Hoon
Christensen, Caleb A.
Heo, Myoung-Sun
Ketterle, Wolfgang
Lee, Ye-Ryoung
Rvachov, Timur Michael
Wang, Tout T.
Date Issued
June 2012
Journal
Physical Review A
Publisher
American Physical Society
Citation
Lee, Ye-Ryoung et al. “Compressibility of an Ultracold Fermi Gas with Repulsive Interactions.” Physical Review A 85.6 (2012): 063615. © 2012 American Physical Society.
Version
Final published version
Abstract
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[subscript 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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
MIT-Harvard Center for Ultracold Atoms
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.85.063615
