论文标题
具有零化学势的相互作用玻色子的热力学特性
Thermodynamic properties of interacting bosons with zero chemical potential
论文作者
论文摘要
在有限温度下，在类似天际的平均场模型中考虑了玻色子相互作用系统的热力学特性。研究了有吸引力和排斥性相互作用之间的相互作用。作为一个特定的例子，讨论了普斯的平衡系统。发现了被考虑的系统中热力学特性的几种修饰，并增加了吸引力的强度。对一阶相变的不同类型进行分类。其中一些过渡也存在于玻尔兹曼近似中。然而，由于可能发生了玻色 - 因斯坦冷凝的可能性，玻色统计的影响引入了热力学量的显着变化。
Thermodynamics properties of an interacting system of bosons are considered at finite temperatures and zero chemical potential within the Skyrme-like mean-field model. An interplay between attractive and repulsive interactions is investigated. As a particular example an equilibrium system of pions is discussed. Several modifications of thermodynamic properties in the considered system are found with increasing a strength of attractive forces. Different types of the first order phase transition are classified. Some of these transitions exist also in the Boltzmann approximation. However, effects of the Bose statistics introduce the notable additional changes in the thermodynamic quantities due to a possibility of the Bose-Einstein condensation.
