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arXiv 1105.1669nucl-th
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随机二体系综中的四极集体

Quadrupole collectivity in random two-body ensembles

Volha Abramkina, Alexander Volya

摘要:

我们进行了系统的调查,出现在随机两体相互作用系统的核集体动力学。我们探讨平均场的发展,并研究其几何。我们研究了多体光谱中的多极集体性及其对两体相互作用哈密顿量的依赖性。四极-四极相互作用分量似乎在两体随机系综中动态地占主导地位。这种四极相干性导致旋转光谱特征,从而表明形成了特定几何形状的变形平均场。

英文摘要:

We conduct a systematic investigation of the nuclear collective dynamics that emerges in systems with random two-body interactions. We explore the development of the mean field and study its geometry. We investigate multipole collectivities in the many-body spectra and their dependence on the underlying two-body interaction Hamiltonian. The quadrupole-quadrupole interaction component appears to be dynamically dominating in two-body random ensembles. This quadrupole coherence leads to rotational spectral features and thus suggests the formation of the deformed mean-field of a specific geometry.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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