Pure-Connection Gravity and Anisotropic Singularities

@article{Krasnov2017PureConnectionGA,
  title={Pure-Connection Gravity and Anisotropic Singularities},
  author={Kirill Krasnov and Yuri Shtanov},
  journal={Universe},
  year={2017},
  volume={4},
  pages={12-22}
}
In four space-time dimensions, there exists a special infinite-parameter family of chiral modified gravity theories. They are most properly described by a connection field, with space-time metric being a secondary and derived concept. All these theories have the same number of degrees of freedom as general relativity, which is the only parity-invariant member of this family. Modifications of general relativity can be arranged so as to become important in regions with large curvature. In this… 
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