Monday, April 16, 2012

1112.0302 (David B. Kaplan et al.)

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

David B. Kaplan, Sichun Sun
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.
View original: http://arxiv.org/abs/1112.0302

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