The Pauli principle and the restricted primitive model

摘要

The restricted primitive model is an electrically neutral, classical model consisting of hard spheres charged either +q or -q. We show that, by appropriately selecting the diameter of the hard spheres, the pressure when q = 0 can be made equal to that for a fluid of Maxwell-Boltzmann point ions and an ideal Fermi gas of electrons. We compare the series expansion of these classical and quantum systems and find that, except for intermediate de Broglie density and moderate to strong electrical interaction strength, the restricted primitive model gives a reasonable representation of the pressure of the corresponding quantum system, Much of the current interest, however, has been focused on the above, excepted region. [References: 31]