title: Field theoretic derivation of the contact value theorem in planar geometries and its modification by the Casimir effect.
abstract: The contact value theorem for Coulomb gases in planar or filmlike geometries is derived using a Hamiltonian field theoretic representation of the system. The case where the film is enclosed by a material of different dielectric constant to that of the film is shown to contain an additional Casimir-like term which is generated by fluctuations of the electric potential about its mean-field value.
authors.affiliation: IRSAMC, Laboratoire de Physique Quantique, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 04, France. dean@irsamc.ups-tlse.fr
authors.forename: D S
authors.initials: DS
authors.lastname: Dean
authors.forename: R R
authors.initials: RR
authors.lastname: Horgan