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arXiv 1507.03709nucl-th
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形状共存/混合动力学四极集体哈密顿量的微观推导

Microscopic derivation of the quadrupole collective Hamiltonian for shape coexistence/mixing dynamics

Kenichi Matsuyanagi, Masayuki Matsuo, Takashi Nakatsukasa, Kenichi Yoshida, Nobuo Hinohara, Koichi Sato

摘要:

假设自洽平均场的时间演化由五对集体坐标和集体动量决定,我们从微观上导出了低频四极激发模的集体哈密顿量.我们表明,五维集体薛定谔方程是能够描述大振幅四极形状动力学形状共存/混合现象。我们重点介绍了基于含时平均场论的方法的基本思想和最新进展,同时也简要讨论了与其它非含时方法的关系。

英文摘要:

Assuming that the time-evolution of the self-consistent mean field is determined by five pairs of collective coordinate and collective momentum, we microscopically derive the collective Hamiltonian for low-frequency quadrupole modes of excitation. We show that the five-dimensional collective Schrödinger equation is capable of describing large-amplitude quadrupole shape dynamics seen as shape coexistence/mixing phenomena. We focus on basic ideas and recent advances of the approaches based on the time-dependent mean-field theory, but relations to other time-independent approaches are also briefly discussed.

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