标题： 转动核中的同位旋矢量和同位旋标量超流相 显示英文标题

标题： Isovector and isoscalar superfluid phases in rotating nuclei

摘要： 研究了两种核超流体——同位旋 T=1 和标量 T=0 相之间的微妙相互作用，使用了一个完全可解的模型。 结果显示，在精确计算中，T=1 和 T=0 的配对模态是解耦的，且 T=1 的配对能量独立于 T=0 的配对强度，反之亦然。 在旋转场中，与同位旋配对被广泛熟知的淬灭现象不同，标量关联保持不变。标量（J=1，T=0）配对场的增强会导致带交叉频率的延迟。 这种行为仅出现在 N=Z 线附近，其实验验证将意味着标量配对集体性的强烈标志。 此外，还讨论了该精确模型在 Hartree-Fock-Bogoliubov 近似下的解。 显示英文摘要

摘要： The subtle interplay between the two nuclear superfluids, isovector T=1 and isoscalar T=0 phases, are investigated in an exactly soluble model. It is shown that T=1 and T=0 pair-modes decouple in the exact calculations with the T=1 pair-energy being independent of the T=0 pair-strength and vice-versa. In the rotating-field, the isoscalar correlations remain constant in contrast to the well known quenching of isovector pairing. An increase of the isoscalar (J=1, T=0) pair-field results in a delay of the bandcrossing frequency. This behaviour is shown to be present only near the N=Z line and its experimental confirmation would imply a strong signature for isoscalar pairing collectivity. The solutions of the exact model are also discussed in the Hartree-Fock-Bogoliubov approximation.