Composite gravity from a metric-independent theory of fermions
arXiv:1812.08201 · doi:10.1088/1361-6382/ab1d91
Abstract
We present a metric-independent, diffeomorphism-invariant model with interacting fermions that contains a massless composite graviton in its spectrum. The model is motivated by the supersymmetric D-brane action, modulated by a fermion potential. The gravitational coupling is related to new physics at the cutoff scale that regularizes UV divergences. We also speculate on possible extensions of the model.
16 pages, 2 figures