Formation of superconducting pair correlations in spherical even-even nuclei
Nuclear Theory
2024-05-17 v1 Superconductivity
Abstract
The appearance of like nucleon pair correlations in the ground state of spherical even-even nuclei is considered within a special Bogoliubov transformation. It is confirmed that in closed subshell nuclei superconducting pair correlations start to form if the coupling constant exceeds a certain threshold value. Rough upper and lower estimates are obtained for the threshold value. It is shown, that superconducting correlations exist in open subshell nuclei at any positive . In this case, nucleon pairs are distributed over all subshells participating in the pairing interaction.
Keywords
Cite
@article{arxiv.2405.10090,
title = {Formation of superconducting pair correlations in spherical even-even nuclei},
author = {V. A. Kuz'min and T. V. Tetereva},
journal= {arXiv preprint arXiv:2405.10090},
year = {2024}
}
Comments
17 pages; JINR preprint E4-2024-13; submitted to PEPAN Letters (in Russian)