The Casimir energy of a massive fermionic field confined in a d+1 dimensional slab-bag

Details The Casimir energy of a massive fermionic field confined in a d+1 dimensional slab-bag The Casimir energy of a massive fermionic field confined in a d+1 dimensional slab-bag

2002-06-13

arxiv.org/abs/hep-th/0206114v1

Int.J.Mod.Phys. A18 (2003) 1761-1772

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, 1 figure

Scientific paper

10.1142/S0217751X03014186

We evaluate the fermionic Casimir effect associated with a massive fermion confined within a planar (d+1) dimensional slab-bag, on which MIT bag model boundary conditions of standard type, along a single spatial direction, are imposed. A simple and effective method for adding up the zero-point energy eigenvalues, corresponding to a quantum field under the influence of arbitrary boundary conditions, imposed on the field on flat surfaces perpendicular to a chosen spatial direction, is proposed. Using this procedure, an analytic result is obtained, from which small and large fermion mass limits, valid for an arbitrary number of dimensions, are derived. They match some known results in particular cases. The method can be easily extended to other configurations.

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