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Showing 1–4 of 4 results
Advanced filters: Author: N. Grani Clear advanced filters

  • Vortex dynamics and mutual friction in quantum fluids are intimately connected to the fundamental properties of superfluids. Here, the authors reveal previously unexplored mechanisms underlying the mutual friction coefficients in ultracold Fermi superfluids in the unitary limit, suggesting bound quasiparticles within the vortex core play a significant role.

    • N. Grani
    • D. Hernández-Rajkov
    • G. Roati
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-11

  • Josephson junction arrays lead quantum circuitry research, vital for quantum computing, simulation, and metrology. Here the authors show that increasing the number of links in an atomtronic Josephson junction necklace enhances the atomic circuit’s resilience to higher circulations, corresponding to higher critical currents.

    • Luca Pezzè
    • Klejdja Xhani
    • Giacomo Roati
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-8

  • Two adjacent layers flowing at different velocities in the same fluid are subject to flow instabilities. This phenomenon is now studied in atomic superfluids, revealing that quantized vortices act as both sources and probes of the unstable flow.

    • D. Hernández-Rajkov
    • N. Grani
    • G. Roati
    Research
    Nature Physics
    Volume: 20, P: 939-944