Spontaneous CPT Violation in Confined QED

Details Spontaneous CPT Violation in Confined QED Spontaneous CPT Violation in Confined QED

2001-03-19

arxiv.org/abs/hep-ph/0103206v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, revtex

Scientific paper

10.1063/1.1435491

Symmetry breaking induced by untwisted fermions in QED in a nonsimply connected spacetime with topology $S^{1}\times R^{3}$ is investigated. It is found that the discrete CPT symmetry of the theory is spontaneously broken by the appearance of a constant vacuum expectation value of the electromagnetic potential along the direction of space periodicity. The constant potential is shown to be gauge nonequivalent to zero in the nonsimply connected spacetime under consideration. Due to the symmetry breaking, one of the electromagnetic modes of propagation is massive with a mass that depends on the inverse of the compactification length. As a result, the system exhibits a sort of topological directional superconductivity.

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