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RADIAL CASIMIR EFFECT IN A SPHERE THROUGH THE KREIN SPACE QUANTIZATION

M. HASANI

Department of Physics, Islamic Azad University, Central Tehran Branch, Tehran, Iran

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F. TAVAKOLI

Department of Physics, Islamic Azad University, Central Tehran Branch, Tehran, Iran

Corresponding author

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, and

M. R. TANHAYI

Department of Physics, Islamic Azad University, Central Tehran Branch, Tehran, Iran

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https://doi.org/10.1142/S0217732312500964Cited by:3 (Source: Crossref)

Abstract

We make an explicit calculation of Casimir effect through an alternative approach of field quantization for a spherical shell in which only the radial part of fluctuation has been taken into account. In this method, negative norm states have been utilized to obtain a natural renormalized theory with the condition that they cannot be affected by the physical boundary conditions. It is shown that by using this method, the exact result is obtained without any appearance of infinity.

Keywords:

PACS: 04.62.+v, 03.70+k, 11.10.Cd, 98.80.H

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