Thermodynamic properties of the two-dimensional two-component plasma

The model under consideration is a two-dimensional two-component plasma. stable against collapse for the dimensionless coupling constant beta < 2. The combination or a technique of renormalized Mayer expansion with the mapping onto the sine-Gordon theory provides the hill thermodynamics of the plasma in the whole stability range of <beta>. The explicit forms of the density-fugacity relationship and of the specific heat (at constant volume) per particle are presented.