标题： 原子核中巨共振的非线性动力学 显示英文标题

标题： Nonlinear dynamics of giant resonances in atomic nuclei

摘要： 分析了原子核单极子巨共振的动力学特性，采用的是时 dependent 相对论平均场模型。 通过表征质子和中子密度分布的动力学变量的时间序列，重构了标量和矢量集体振荡的相空间。 对所得回归图和相关维数的分析表明，标量模式表现为规则运动，而矢量振荡表现出混沌动力学。 信息论泛函识别并量化了具有空间和时间结构的量子系统中巨共振的非线性动力学。 显示英文摘要

摘要： The dynamics of monopole giant resonances in nuclei is analyzed in the time-dependent relativistic mean-field model. The phase spaces of isoscalar and isovector collective oscillations are reconstructed from the time-series of dynamical variables that characterize the proton and neutron density distributions. The analysis of the resulting recurrence plots and correlation dimensions indicate regular motion for the isoscalar mode, and chaotic dynamics for the isovector oscillations. Information-theoretic functionals identify and quantify the nonlinear dynamics of giant resonances in quantum systems that have spatial as well as temporal structure.