Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2008-11-04
Int. J. Mod. Phys. A 25, 1449-1461 (2010)
Physics
Nuclear Physics
Nuclear Theory
21 pages, 10 figures (the description to the model is modified, accepted by Int.J.Mod.Phys.A)
Scientific paper
10.1142/S0217751X10048056
The thermodynamic consistency of quasiparticle boson system with effective mass $m^*$ and zero chemical potential is studied. We take the quasiparticle gluon plasma model as a toy model. The failure of previous treatments based on traditional partial derivative is addressed. We show that a consistent thermodynamic treatment can be applied to such boson system provided that a new degree of freedom $m^*$ is introduced in the partial derivative calculation. A pressure modification term different from the vacuum contribution is derived based on the new independent variable $m^*$. A complete and self-consistent thermodynamic treatment for quasiparticle system, which can be widely applied to effective mass models, has been constructed.
Su Ru-Keng
Yin Shaoyu
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