Speckle Imaging of Spin Fluctuations in a Strongly Interacting Fermi Gas
Name
Sanner-2011-Speckle Imaging of Spin Fluctuations in a Strongly Interacting Fermi Gas.pdf
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Author(s)
Sanner, Christian Burkhard
Su, Edward Joseph
Keshet, Aviv
Huang, Wujie
Gillen, Jonathon Isaiah
Gommers, Ralf
Ketterle, Wolfgang
Date Issued
January 2011
Journal
Physical review letters
Publisher
American Physical Society
Citation
Sanner, Christian et al. “Speckle Imaging of Spin Fluctuations in a Strongly Interacting Fermi Gas.” Physical Review Letters 106.1 (2011) : n. pag. © 2011 The American Physical Society
Version
Final published version
Abstract
Spin fluctuations and density fluctuations are studied for a two-component gas of strongly interacting fermions along the Bose-Einstein condensate-BCS crossover. This is done by in situ imaging of dispersive speckle patterns. Compressibility and magnetic susceptibility are determined from the measured fluctuations. This new sensitive method easily resolves a tenfold suppression of spin fluctuations below shot noise due to pairing, and can be applied to novel magnetic phases in optical lattices.
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/PhysRevLett.106.010402
