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28 March 2024
 
  » arxiv » hep-th/0505218

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Casimir effect for thin films from imperfect materials
V. N. Markov ; Yu.M. Pis’mak ;
Date 24 May 2005
Subject High Energy Physics - Theory; Materials Science | hep-th cond-mat.mtrl-sci quant-ph
AbstractWe propose an approach for investigation of interaction of thin material films with quantum electrodynamic fields. Basing on the main principles of the quantum electrodynamics (locality, gauge invariance, renormalizability) we construct a single model for Casimir-like phenomena arising near the film boundary on distances $10^{-9}cm - 10^{-8} cm$ where fluctuations of Dirac fields are not essential. Thin film is presented in the model by a singular background field concentrated on a 2-dimensional surface. All properties of the film material are described by one dimensionless parameter. For two parallel plane films we calculate the photon propagator and Casimir force, which appears to be dependent on the film material and can be both attractive and repulsive. We consider also the interaction of the plane film with point charge and straight line current. Here, besides usual results of classical electrodynamics the model predicts appearance of anomalous electric and magnetic fields.
Source arXiv, hep-th/0505218
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