Dielectric Constant of Ionic Solutions: A Field-Theory Approach
Dielectric Constant of Ionic Solutions: A Field-Theory Approach
We study the variation of the dielectric response of a dielectric liquid (e.g. water) when a salt is added to the solution. Employing field-theoretical methods, we expand the Gibbs free energy to first order in a loop expansion and calculate self-consistently the dielectric constant. We predict analytically the dielectric decrement …