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cond-mat.quant-gas2025
Anomalous Doppler effect in two-component Bose-Einstein condensates
Tomasz Zawiślak, Sandro Stringari, Alessio Recati
We show that two-component Bose-Einstein condensed mixtures, in presence of a persistent current, exhibit a non trivial Doppler shift of the sound velocities. The peculiarity is du…
nucl-th2025
Heisenberg Uncertainty Inequality and Breaking of Isospin Symmetry in Atomic Nuclei
Sandro Stringari
The Heisenberg uncertainty inequality is used to derive a rigorous lower bound to the amount of isospin impurities in atomic nuclei, caused by the violation of isospin symmet…