摘要

基于手征孤子模型我们探讨了量子色动力学相变在不同介质中的相图结构。在夸克介质中，根据适当的边界求解了耦合方程，比较热介质中的能量来确定相变范围，得到低密度区的相变是过渡相变，而高密度区是一级相变，中间位置存在CEP。如果把强子态看成是核子介质，通过构建净重子密度模型，当两个净重子密度的值相交时，我们认为核子有很多重叠的机会，这个时刻被设定相变临近点，预示着强子相正在转变为夸克相。

 

关键词：夸克介质、核子介质、相变、相图结构

目录

一、介绍·········································································································3

二、模型公式···································································································3

三、夸克介质中的相图结构·················································································5

四、夸克介质中零化学势QCD状态方程·································································8

五、核物质中的相图结构····················································································9

六、结论········································································································10

七、感谢········································································································11

八、参考文献··································································································11