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arXiv · 1003.1264

Vacuum polarization from confined fermions in 3 + 1 dimensions

C. Ccapa Ttira·C. D. Fosco·E. Losada
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Abstract

We study the main properties of the one-loop vacuum polarization function for massless spinor QED4 in a slab, namely, with fields defined on M in R^(3+1), such that M = {(x0, ..., x3)|0 <= x3 <= epsilon}, and bag-like boundary conditions on the boundary. We evaluate the induced charge density and current due to an external constant electric field normal to the boundary; we also study the effective action for a purely transverse field, identifying its epsilon-dependent contribution.

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C. Ccapa Ttira, C. D. Fosco, E. Losada. 2010-03-05. Vacuum polarization from confined fermions in 3 + 1 dimensions. https://doi.org/10.1103/physrevd.82.085008

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