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Showing 1–4 of 4 results
Advanced filters: Author: Sandro Stringari Clear advanced filters

  • The two-fluid model of superfluids predicts a second, quantum mechanical form of sound. Ultracold atom experiments have now measured second sound in the unusual two-dimensional superfluid described by the Berezinskii–Kosterlitz–Thouless transition.

    • Sandro Stringari
    News & Views
    Nature Physics
    Volume: 17, P: 770-771

  • In an ultracold, superfluid Fermi gas, measurements of second sound — a wave in which the superfluid and normal components of the gas oscillate in antiphase — make it possible to determine the temperature dependence of the superfluid fraction.

    • Leonid A. Sidorenkov
    • Meng Khoon Tey
    • Sandro Stringari
    Research
    Nature
    Volume: 498, P: 78-81

  • Supersolidity is an intriguing state of matter that combines superfluid and crystal features. Theoretically predicted in the 1960s, it has only recently been observed in atomic gases that exhibit typical supersolid properties such as spontaneous density modulations combined with coherence effects and the occurrence of new Goldstone modes.

    • Alessio Recati
    • Sandro Stringari
    Reviews
    Nature Reviews Physics
    Volume: 5, P: 735-743