Pair formation and condensation usually occur together in Fermi superfluids. The observation of a pseudogap that implies pairing above the condensation temperature in a strongly interacting Fermi gas is thus an exciting development.
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Randeria, M. Pre-pairing for condensation. Nature Phys 6, 561–562 (2010). https://doi.org/10.1038/nphys1748
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DOI: https://doi.org/10.1038/nphys1748
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