球偶数核中超导对相关性的形成

IF 0.4 Q4 PHYSICS, PARTICLES & FIELDS

Physics of Particles and Nuclei Letters Pub Date : 2024-10-16 DOI:10.1134/S154747712470153X

V. A. Kuz’min, T. V. Tetereva

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引用次数: 0

摘要

在特殊波哥留布夫变换的基础上，研究了球状偶偶核基态中似核对相关性的发生。研究证实，在闭壳原子核中，当耦合常数 G 大于某个临界值时，就会出现超导核对关联。对阈值的上下限进行了粗略估计。研究表明，在开放子壳核中，超导关联存在于任何正 G 值，核子对分布于参与配对相互作用的所有子壳。

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Formation of Superconducting Pair Correlations in Spherical Even–Even Nuclei

The occurrence of like-nucleon pair correlations in the ground state of spherical even–even nuclei is considered on the basis of the special Bogoliubov transformation. It is confirmed that, in closed-subshell nuclei, superconducting pair correlations occur at coupling constants G greater than a certain threshold value. Rough estimates of upper and lower bounds are obtained for the threshold value. It is shown that, in open-subshell nuclei, superconducting correlations exist at any positive G, and nucleon pairs are distributed over all subshells participating in the pairing interaction.

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来源期刊

Physics of Particles and Nuclei Letters PHYSICS, PARTICLES & FIELDS-

CiteScore

0.80

自引率

20.00%

发文量

108

期刊介绍： The journal Physics of Particles and Nuclei Letters, brief name Particles and Nuclei Letters, publishes the articles with results of the original theoretical, experimental, scientific-technical, methodological and applied research. Subject matter of articles covers: theoretical physics, elementary particle physics, relativistic nuclear physics, nuclear physics and related problems in other branches of physics, neutron physics, condensed matter physics, physics and engineering at low temperatures, physics and engineering of accelerators, physical experimental instruments and methods, physical computation experiments, applied research in these branches of physics and radiology, ecology and nuclear medicine.