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arXiv 1209.4973nucl-th
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Skyrme相互作用下平均场外相关的随机方法

Stochastic approach to correlations beyond the mean field with the Skyrme interaction

Y. Fukuoka, T. Nakatsukasa, Y. Funaki, K. Yabana

摘要:

基于多组态Skyrme密度泛函理论,对轻N=Z偶偶核~(12)C进行了大规模计算.随机程序和时间演化被用来准备许多斯莱特行列式。每个状态都投射在宇称和角动量的本征态上。利用Skyrme哈密顿量进行组态混合计算,得到了低能级本征态及其显式波函数。生成的波函数完全不受任何假设和对称性限制。激发光谱和跃迁几率很好地再现,不仅为基态带,但为负宇称激发态和霍伊尔态。

英文摘要:

Large-scale calculation based on the multi-configuration Skyrme density functional theory is performed for the light N=Z even-even nucleus, 12C. Stochastic procedures and the imaginary-time evolution are utilized to prepare many Slater determinants. Each state is projected on eigenstates of parity and angular momentum. Then, performing the configuration mixing calculation with the Skyrme Hamiltonian, we obtain low-lying energy-eigenstates and their explicit wave functions. The generated wave functions are completely free from any assumption and symmetry restriction. Excitation spectra and transition probabilities are well reproduced, not only for the ground-state band, but for negative-parity excited states and the Hoyle state.

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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