The finding that the normal phase of an ultracold gas of fermionic atoms in the strongly interacting regime is close to a Fermi liquid isn't quite what theorists expected for these systems.
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Shin, Yi. Surprise in the strong regime. Nature 463, 1029–1030 (2010). https://doi.org/10.1038/4631029a
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DOI: https://doi.org/10.1038/4631029a
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