The covariant electromagnetic Casimir effect for real conducting spherical shells |
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Authors: | H Razmi M Abtahi |
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Affiliation: | 1. Department of Physics , The University of Qom , Qom 37185-359, Islamic Republic of Iran razmi@qom.ac.ir razmiha@hotmail.com;3. Department of Physics , The University of Qom , Qom 37185-359, Islamic Republic of Iran |
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Abstract: | Using the covariant electromagnetic Casimir effect (recently introduced for real conducting cylindrical shells) 1 Razmi, H and Fadaei, N. 2009. Nucl. Phys. B, 814: 582–593. Google Scholar] (Razmi, Fadaei. Nucl. Phys. B 2009, 814, 582), the Casimir force experienced by a spherical shell, under Dirichlet boundary condition, is calculated. The renormalization procedure is based on the plasma cut-off frequency for real conductors. The real case of a gold (silver) sphere is considered and the corresponding electromagnetic Casimir force is computed. In the covariant approach, there is no decomposition of fields to TE and TM modes; thus, we do not need to consider the Neumann boundary condition in parallel to the Dirichlet problem and then add their corresponding results. |
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Keywords: | Casimir effect canonical quantization Green function |
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