Vector Casimir effect for a D-dimensional sphere

Details Vector Casimir effect for a D-dimensional sphere Vector Casimir effect for a D-dimensional sphere

1996-11-11

arxiv.org/abs/hep-th/9611078v1

Phys.Rev. D55 (1997) 4940-4946

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, 1 figure, REVTeX

Scientific paper

10.1103/PhysRevD.55.4940

The Casimir energy or stress due to modes in a D-dimensional volume subject to TM (mixed) boundary conditions on a bounding spherical surface is calculated. Both interior and exterior modes are included. Together with earlier results found for scalar modes (TE modes), this gives the Casimir effect for fluctuating ``electromagnetic'' (vector) fields inside and outside a spherical shell. Known results for three dimensions, first found by Boyer, are reproduced. Qualitatively, the results for TM modes are similar to those for scalar modes: Poles occur in the stress at positive even dimensions, and cusps (logarithmic singularities) occur for integer dimensions $D\le1$. Particular attention is given the interesting case of D=2.

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