Deconstructing 5-D QED
نویسندگان
چکیده
We discuss periodic compactification and latticization of a 5-D U(1) theory with a Dirac fermion, yielding a 1 + 3 effective theory. We address subtleties in the lattice fermionic action, such as fermion doubling and the Wilson term. We compute the Coleman-Weinberg potential for the Wilson line which is finite for N -branes ≥ 3, due to the ZN symmetry, which replaces translations in the 5th dimension. This mode becomes a PNGB in the low energy 1 + 3 theory. We derive its anomalous coupling to the “photon” and its KK-modes. ∗[email protected], [email protected]
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تاریخ انتشار 2002