Fluctuation-induced interaction between randomly charged dielectrics.
Monopolar charge disorder effects are studied in the context of fluctuation-induced interactions between neutral dielectric slabs. It is shown that quenched bulk charge disorder gives rise to an additive contribution to the net interaction force which decays as the inverse distance between the slabs and may thus completely mask the standard Casimir-van der Waals force at large separations. By contrast, annealed (bulk or surface) charge disorder leads to a net interaction force whose large-distance behavior agrees with the universal Casimir force between ideal conductors, which scales as the inverse cubic distance, and the dielectric properties enter only in the subleading corrections.
Naji
Ali
A
Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom.
Dean
David S
DS
Sarabadani
Jalal
J
Horgan
Ron R
RR
Podgornik
Rudolf
R
D008956:Models, Chemical; D055672:Static Electricity; D013816:Thermodynamics