3 papers
cond-mat.quant-gas2026
The moving Fermi polaron
Johanna Hennebichler, Ruben Erlenstedt, Erich Dobler +5
The Fermi polaron, formed by an impurity interacting with a surrounding Fermi sea, exemplifies the canonical quasiparticle concept as a cornerstone in our description of quantum ma…
cond-mat.quant-gas2025
Dynamical signature of vortex mass in Fermi superfluids
Andrea Richaud, Matteo Caldara, Massimo Capone +2
Quantum vortices are commonly described as funnel-like objects around which the superfluid swirls, and their motion is typically modeled in terms of massless particles. Here we sho…
cond-mat.quant-gas2025
Probing Superfluidity with Quantum Vortex Necklaces
Andrea Richaud, Pietro Massignan
We present a method for measuring the superfluid fraction of a Bose-Einstein condensate (BEC) without relying on external perturbations or imposed optical lattices. Our approach le…