相变过程中的混合相
Mixed phases during the phase transitions
摘要：
对致密恒星内部新物质形式的探索迫使我们研究相变的物理性质。以非对称核物质的液-气相变为例，在Gibbs条件的基础上，详细讨论了一级相变和相平衡.通过求解平均场和组分粒子密度的耦合方程，在高斯-费米近似下自洽地计算出混合相的特征。混合相是由处于平衡状态的两相组成的不均匀物质;它具有晶体结构，具有各种几何形状的单元，其中具有特征形状的一个相（称为“面食”）以一定体积分数嵌入另一相中。这个框架使我们能够适当地考虑库仑相互作用和界面能，从而有时我们看到的混合相的几何结构的机械不稳定性。还阐明了热效应对液-气相变的影响。类似地，在超子物质中研究了强子-夸克解除禁闭跃迁，讨论了中微子俘获效应和热效应与混合相性质的关系。阐明了混合相的特殊性，并给出了状态方程。
英文摘要：
Quest for a new form of matter inside compact stars compels us to examine the thermodynamical properties of the phase transitions. We closely consider the first-order phase transitions and the phase equilibrium on the basis of the Gibbs conditions, taking the liquid-gas phase transition in asymmetric nuclear matter as an example. Characteristic features of the mixed phase are figured out by solving the coupled equations for mean-fields and densities of constituent particles self-consistently within the Thomas-Fermi approximation. The mixed phase is inhomogeneous matter composed of two phases in equilibrium; it takes a crystalline structure with a unit of various geometrical shapes, inside of which one phase with a characteristic shape, called "pasta", is embedded in another phase by some volume fraction. This framework enables us to properly take into account the Coulomb interaction and the interface energy, and thereby sometimes we see the mechanical instability of the geometric structures of the mixed phase. Thermal effect on the liquid-gas phase transition is also elucidated. Similarly hadron-quark deconfinement transition is studied in hyperonic matter, where the neutrino-trapping effect as well as the thermal effect is discussed in relation to the properties of the mixed phase. Specific features of the mixed phase are elucidated and the equation of state is presented.
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。
