Gravity with dynamical torsion
arXiv:2109.09546 · doi:10.1088/1361-6382/abcbe0
Abstract
We propose four simple Lagrangians for gravity models with dynamical torsion which are free from ghosts and tachyons. The torsion propagates two massive or massless particles of spin 1^\pm and 0^\pm besides the massless graviton 2^+ propagated by metric.
9 pages