弱磁场中弱相互作用玻色气体的热力学性质

运用外势中弱相互作用玻色体系的理论结论,研究弱磁场中弱相互作用玻色气体的高温热力学性质,给出系统总能和热容量的解析式,分析粒子之间的相互作用及磁场对系统热力学性质的影响.研究结果表明,排斥(吸引)对粒子和能量的空间分布有集中(分散)作用,并使得系统的化学势、总能、热容量都增大(减小);加强磁场既可使得粒子和能量的空间分布趋于分散又可削弱相互作用对粒子和能量空间分布的影响.相互作用对各个特征量的影响也有着不同的个性表现.

Thermodynamic properties of a weakly interacting Bose gas in a weak magnetic field

The spatial distributions of particle number and energy and the expressions of some important thermodynamic quantities are derived analytically by Local-density approximation method and invariability of fugacity in inhomogenous system. The effects of the interparticle interactions as well as magnetic field on the thermodynamic properties of the system are discussed. It is shown that there are common regulations of the effects on each eigenvalue due to the inter-particle interactions, and in addition, there are different individual behaviors.