SPECIAL ISSUE: Selected Papers from the Ninth Conference on Quantum Field Theory Under the Influence of External Conditions (QFEXT09); University of Oklahoma, 21–25 September 2009; Editors: K. Milton and M. BordagNo Access

ELECTROMAGNETIC CASIMIR EFFECT IN WEDGE GEOMETRY AND THE ENERGY-MOMENTUM TENSOR IN MEDIA

I. BREVIK

Department of Energy and Process Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway

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S. Å. ELLINGSEN

Department of Energy and Process Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway

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, and

K. A. MILTON

Oklahoma Center for High Energy Physics and H.L. Dodge Department of Physics and Astronomy, The University of Oklahoma, Norman, OK 73019, USA

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https://doi.org/10.1142/S0217751X10049542Cited by:4 (Source: Crossref)

Abstract

The wedge geometry closed by a circular-cylindrical arc is a nontrivial generalization of the cylinder, which may have various applications. If the radial boundaries are not perfect conductors, the angular eigenvalues are only implicitly determined. When the speed of light is the same on both sides of the wedge, the Casimir energy is finite, unlike the case of a perfect conductor, where there is a divergence associated with the corners where the radial planes meet the circular arc. We advance the study of this system by reporting results on the temperature dependence for the conducting situation. We also discuss the appropriate choice of the electromagnetic energy-momentum tensor.

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