3 papers
cond-mat.quant-gas2026
Cooperative stabilization of persistent currents in superfluid ring networks
Marzena Ciszak, Nicola Grani, Diego Hernandez-Rajkov +3
Cooperative effects in oscillator networks are often associated with enhanced stability of phase-locked solutions, which increases with system size. We show that the stabilization…
cond-mat.quant-gas2025
Tuning the Critical Current in Toroidal Superfluids via Controllable Impurities
K. Xhani, G. Del Pace, N. Grani +4
We combine numerical and experimental approaches to study how impurities affect the maximum superflow in an annular Bose-Einstein condensate. By tuning the impurity density, we ach…
cond-mat.quant-gas2025
Measuring mutual friction in superfluids: the role of initial vortex configuration fluctuations
Nicola Grani, Diego Hernández-Rajkov, Marcia Frómeta Fernández +2
The physical origin of mutual friction in quantum fluids is deeply connected to the fundamental nature of superfluidity. It stems from the interaction between the superfluid and no…