Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-11-13
Int.J.Mod.Phys.A25:2270-2278,2010
Physics
High Energy Physics
High Energy Physics - Theory
10 pages, 2 figures. Contribution to Proceedings of Quantum Field Theory Under the Influence of External Conditions (QFEXT09),
Scientific paper
10.1142/S0217751X10049542
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.
Brevik Iver
Ellingsen Simen A.
Milton Kimball A.
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