基于扩展的Skyrme有效相互作用 ,在Hartree Fock近似下对非对称核物质的化学不稳定性与力学不稳定性进行了研究 ,并与简单的三参数势 ,即所谓的软势与硬势的计算结果进行了比较 .结果发现两种模型给出的非对称核物质化学不稳定性与力学不稳定性之间的关系是完全不同的 .通过研究化学不稳定性在临界温度附近的行为发现 ,对软势与硬势 ,化学不稳定性可能出现在温度高于临界温度的气化 (全爆炸 )机制中 .而对于SKM势参数 ,化学不稳定性不会出现在温度高于临界温度的气化 (全爆炸 )机制中 .这种差别也反映在压强 密度平面上力学不稳定区与化学不稳定区的位置关系上 .进一步的计算表明 ,这种差别是由于两种模型给出的单粒子势的密度依赖形式的不同而导致的 ,这必将体现在重离子碰撞的现象中 ,从而可以作为提取核物质状态方程密度依赖形式的探针 Based on the extended Skyrme effective interaction, the chemical instability and mechanical instability of asymmetric nuclear matter are studied under the Hartree Fock approximation. Compared with the simple three-parameter potential, that is, the so-called calculation of soft potential and hard potential The results are compared.It is found that the relationship between chemical instability and mechanical instability of asymmetric nuclear materials given by the two models is completely different.By studying the behavior of chemical instability near the critical temperature, Soft and hard, chemical instability may occur in the gasification (full explosion) mechanism at temperatures above the critical temperature, whereas for SKM potential parameters, chemical instability does not occur at gasification temperatures above the critical temperature (Total explosion) mechanism, and this difference is also reflected in the position of the mechanical instability zone and the chemical instability zone on the pressure density plane.Further calculations show that the difference is due to the single particle potential Density dependent form of the difference, which will inevitably be reflected in the phenomenon of heavy ion collisions, which can be used as a state of the nuclear matter extract density-dependent form of the probe