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arXiv 0707.3089nucl-th
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原子核量子相变的微观描述

Microscopic description of nuclear quantum phase transitions

T. Niksic, D. Vretenar, G. A. Lalazissis, P. Ring

摘要:

相对论平均场框架,扩展到包括相关的恢复打破对称性和波动的四极形变,适用于研究Nd同位素的形状转变。结果表明,基于整体有效相互作用的微观自洽方法不仅能描述球形核与形变核之间跃迁的一般特征,而且能描述量子形状相变临界点处激发谱和跃迁率的奇异性质.

英文摘要:

The relativistic mean-field framework, extended to include correlations related to restoration of broken symmetries and to fluctuations of the quadrupole deformation, is applied to a study of shape transitions in Nd isotopes. It is demonstrated that the microscopic self-consistent approach, based on global effective interactions, can describe not only general features of transitions between spherical and deformed nuclei, but also the singular properties of excitation spectra and transition rates at the critical point of quantum shape phase transition.

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