6533b85bfe1ef96bd12bb5ab
RESEARCH PRODUCT
Electromagnetic field fluctuations near a dielectric-vacuum boundary and surface divergences in the ideal conductor limit
Nicola BartoloRoberto Passantesubject
Electromagnetic fieldField (physics)WAVESVacuum stateFOS: Physical sciencesDielectric01 natural sciencesElectromagnetic energy densitiePolarizability0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)010306 general physicsCasimir-Polder interactionsPhysicsQuantum PhysicsIdeal (set theory)Condensed Matter - Mesoscale and Nanoscale PhysicsMagnetic energyCondensed matter physics010308 nuclear & particles physicsField fluctuationAtomic and Molecular Physics and OpticsConductorQuantum electrodynamicsFORCESQuantum Physics (quant-ph)description
We consider the electric and magnetic field fluctuations in the vacuum state in the region external to a half-space filled with a homogeneous non-dissipative dielectric. We discuss an appropriate limit to an ideal metal and concentrate our interest on the renormalized field fluctuations, or equivalently to renormalized electric and magnetic energy densities, in the proximity of the dielectric-vacuum interface. We show that surface divergences of field fluctuations arise at the interface in an appropriate ideal conductor limit, and that our limiting procedure allows to discuss in detail their structure. Field fluctuations close to the surface can be investigated through the retarded Casimir-Polder interaction with an appropriate polarizable body.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-07-27 |