Cosmological signatures of time-asymmetric gravity

@article{Corts2016CosmologicalSO,
  title={Cosmological signatures of time-asymmetric gravity},
  author={Marina Cort{\^e}s and Andrew R. Liddle and Lee Smolin},
  journal={Physical Review D},
  year={2016},
  volume={94},
  pages={123514}
}
We develop the model proposed by Cort\^es, Gomes & Smolin, to predict cosmological signatures of time-asymmetric extensions of general relativity they proposed recently. Within this class of models the equation of motion of chiral fermions is modified by a torsion term. This term leads to a dispersion law for neutrinos that associates a new time-varying energy with each particle. We find a new neutrino contribution to the Friedmann equation resulting from the torsion term in the Ashtekar… 

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