有限饱和费米子系统中的水-液相变
Cluster-liquid transition in finite saturated fermionic systems
摘要：
通过考虑三种长度-尺度比和变形约束的自洽平均场计算，分析了饱和度对原子核等有限系统中团簇形成的作用。形变光系统中的团簇效应与核子间相互作用的饱和性质有关。通过扩展$^{16}$ O的半径，说明了低核子密度下团簇的形成。相图表明，团簇的形成可以解释为晶体和液相之间的混合状态。在混合团簇阶段，束缚势减弱了有效核相互作用产生的离域。
英文摘要：
The role of saturation for cluster formation in finite systems such as atomic nuclei is analyzed by considering three length-scale ratios, and performing deformation-constrained self-consistent mean-field calculations. The effect of clusterisation in deformed light systems is related to the saturation property of the inter-nucleon interaction. The formation of clusters at low nucleon density is illustrated by expanding the radius of $^{16}$O. A phase diagram shows that the formation of clusters can be interpreted as a hybrid state between the crystal and the liquid phases. In the hybrid cluster phase the confining potential attenuates the delocalization generated by the effective nuclear interaction.
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