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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
Impurity-controlled vortex mobility and pair-breaking in fermionic superfluid rings
Buğra Tüzemen, Andrea Barresi, Gabriel Wlazłowski +2
Using time-dependent density functional theory, we study how density and size of impurities govern dissipation of persistent currents of fermionic superfluid rings in the BCS regim…