Grupa prof. Piotra Magierskiego opublikowała wyniki swoich badań nad znaczeniem nadciekłości w niskoenergetycznych reakcjach jądrowych w renomowanym czasopiśmie Physical Review Letters. Serdecznie gratulujemy!


Simulations of colliding superfluid nuclei revealed that their fusion may be more difficult than previously thought. When nucleons move inside an atomic nucleus they pair up and form “Cooper pairs” behaving like dancers performing a synchronized dance. Let us imagine a situation when two groups, dancing out of phase, are merged. It is easy to visualize the trouble the dancers belonging to different groups may have trying to synchronize their dance with colleagues from the other group. This resembles the situation encountered in a collision of two superfluid nuclei. Those troubled dancers form a “solitonic excitation”, an abrupt pairing-phase distortion, which store a large amount of energy. In the Letter we show, based on superfluid DFT framework, that the solitonic excitation gives rise to a variety of changes in reaction dynamics: most intriguingly it can even prevent fusion reaction. Predicted novel role of superfluidity can be detectable with current experimental technology and it is now awaiting for verification.