Simple field theoretical approach of Coulomb systems. Entropic effects
  We discuss a new simple field theory approach of Coulomb systems. Using a description in terms of fields, we introduce in a new way the statistical degrees of freedom in relation with the quantum mechanics. We show on a series of examples that these fundamental entropic effects can help account for physical phenomena in relation with Coulomb systems whether symmetric or also asymmetric in valence. On the overall, this gives a new understanding of these systems. 
D. di Caprio, J.P. Badiali, M. Holovko