Onset of chaos in rapidly rotating nuclei.
Onset of chaos in rapidly rotating nuclei.
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DOI：
10.1103/physrevlett.64.3119
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发表时间：
1990-06
影响因子：
8.6
通讯作者：
Åberg
中科院分区：
文献类型：
--
作者：
Åberg
混沌的发病进行了研究，激发，快速旋转的核，利用一个示意性的两体剩余相互作用添加到曲柄尼尔森哈密顿。在不同程度的规则性和混乱之间的混合动力学效应进行了研究的集体旋转强度的破碎。研究发现，混沌的发生与旋转强度函数的平均标准差的饱和有关。尽管如此，旋转阻尼宽度可能会表现出在混沌状态下的运动变窄。
The onset of chaos is investigated for excited, rapidly rotating nuclei, utilizing a schematic two-body residual interaction added to the cranked Nilsson Hamiltonian. Dynamical effects at various degrees of mixing between regularity and chaos are studied in terms of fragmentation of the collective rotational strength. It is found that the onset of chaos is connected to a saturation of the average standard deviation of the rotational strength function. Still, the rotational-damping width may exhibit motional narrowing in the chaotic regime.