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arXiv · hep-ph/0107229

Photon Propagation in Space-Time with a Compactified Spatial Dimension

E. J. Ferrer·V. de la Incera·A. Romeo
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Abstract

The one-loop effects of vacuum polarization induced by untwisted fermions in QED in a nonsimply connected space-time with topology $S^{1}\times R^{3}$ are investigated. It is found that photon propagation in this system is anisotropic, appearing several massive photon modes and a superluminal transverse mode. For small compactification radius $a$, the superluminal velocity increases logarithmically with $a$. At low energies the photon masses lead to an effective confinement of the gauge fields into a (2+1)-dimensional manifold transverse to the compactified direction. The system shows a topologically induced directional superconductivity.

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E. J. Ferrer, V. de la Incera, A. Romeo. 2001-07-22. Photon Propagation in Space-Time with a Compactified Spatial Dimension. https://doi.org/10.1016/s0370-2693(01)00883-8

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