论文标题
范德华的状态方程不对称核物质
Van der Waals equation of state for asymmetric nuclear matter
论文作者
论文摘要
在关键状态区域中考虑了范德华方程在不对称核问题上的应用。从托马斯（Thomas）开始获得范德华（Van der Waals）压力和自由能的校正 - FERMI熵表达式，以确保实现Nernst Theorem。衍生的校正解释了有效的核素质量和中子 - 核子同位素不对称。范德华方程的参数是推导出对对称核物质的临界温度的实验值，并测试了针对Skyrme能量密度函数理论的统计校正的范德华的模型。考虑了压力温度组合空间中的临界线。不可压缩系数是沿临界线确定的，这是核物质组成的函数。讨论了交叉临界线时特定热量的价值。
The application of van der Waals equation of state to the asymmetric nuclear matter is considered in a critical state region. The corrections to the van der Waals pressure and free energy due to the Fermi statistics are obtained starting from the Thomas--Fermi entropy expression which ensures the fulfilment of Nernst theorem. The derived corrections account for the effective nucleon mass and neutron-proton isotopic asymmetry. The parameters of van der Waals equation of state are deduced taking the experimental value of critical temperature for symmetric nuclear matter and testing the model of van der Waals with statistics corrections included against the theory of Skyrme energy density functional. Critical line in pressure-temperature-composition space is considered. Incompressibility coefficient is determined along the critical line as a function of nuclear matter composition. Jump in the value of specific heat upon crossing critical line is discussed.
