The study of the dynamical phase transitions and the quark and /or gluon matter in the relativistic heavy ion collisions

在相对论性重离子碰撞实验中，描述了包括介子对激发效应在内的手性相变。研究还表明，失向手性凝聚物可以实现准稳定状态。对于夸克-强子相变，利用夸克-波恩模型，用夸克对比和粒子-空穴型相互作用强度的函数表示了强子相与彩色超导相之间的相界。进一步研究了量子胶子物质的剪切粘度，发现剪切粘度的值很小。

In the physics of the relativistic heavy-ion collision experiments, the chiral phase transition is described including the effects of the pion-pair excitation. Also, it is shown that the disoriented chiral condensates can be realized as a quasi-stable state. As for the quark-hadron phase transition, the phase boundary between hadron phase and the color-superconducting phase is shown by using the quark-Bonn model as a function of the ration of quark-pair and the particle-hole type interaction strength. Further, the shear viscosity of the quantum gluon matter is investigated and it is shown that the value of shear viscosity is small.