孤子袋模型的真空结构改变与禁闭解除相变

CHANGE OF VACUUM STRUCTURE AND DECONFINEMENT TRANSITION IN THE SOLITON BAG MODEL

在非拓扑孤子模型的基础上给出了禁闭解除相变的一种新图象.分析了孤子解的存在与势函数非线性性之间的关系.给出了有限温度下的有效势和它的极值点所满足的方程.结果表明:在临界温度T_c,物理真空态转变成微扰真空态,孤子解消失,禁闭解除相变发生.

Based on the nontopological soliton model, a new picture for deconfinement transition is given. The relation between the existence of soliton solution and the nonlinearity of potential function is analysed. The effective potential and the equation satisfied by its extreme points are given at finite temperature. It turns out that, at critical temperature T_c, the physical vacuum is transformed into perturbative vacuum, soliton solution disappears and deconfinement phase transition occurs.