Spacetime as a topological insulator: Mechanism for the origin of the fermion generations

Details Spacetime as a topological insulator: Mechanism for the origin of the fermion generations Spacetime as a topological insulator: Mechanism for the origin of the fermion generations

2011-12-01

arxiv.org/abs/1112.0302v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

Substantially revised version, to appear in Phys. Rev. Lett

Scientific paper

We suggest a mechanism whereby the three generations of quarks and leptons correspond to surface modes in a five-dimensional theory. These modes arise from a nonlinear fermion dispersion relation in the extra dimension, much in the same manner as fermion surface modes in a topological insulator or lattice implementation of domain wall fermions. We also show that the topological properties can persist in a deconstructed version of the model in four dimensions.

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