title: Effective attraction between like-charged colloids in a two-dimensional plasma.
abstract: The existence of attractions between like-charged colloids immersed in ionic solution has been discovered in recent experiments. This phenomenon contradicts the predictions of Derjaguin-Landau-Verwey-Overbeek and indicates a failure of mean-field theory. We study a toy model based on a two-dimensional one-component plasma, which is exactly soluble at one particular coupling constant. We show that colloidal interaction results from a competition between ion-ion repulsion and longer ranged ion-void attraction.
authors: Department of Physics, Indiana University, Bloomington, Indiana 47405, USA.
authors: N
authors: N
authors: Ma
authors: S M
authors: SM
authors: Girvin
authors: R
authors: R
authors: Rajaraman