Cosmological particle creation in Weyl geometry

@article{Berezin2022CosmologicalPC,
  title={Cosmological particle creation in Weyl geometry},
  author={Viktor Aleksandrovich Berezin and V I Dokuchaev},
  journal={Classical and Quantum Gravity},
  year={2022},
  volume={40}
}
We investigated the possibility of the homogeneous and isotropic cosmological solution in Weyl geometry, which differs from the Riemannian geometry by adding the so called Weyl vector. The Weyl gravity is obtained by constructing the gravitational Lagrangian both to be quadratic in curvatures and conformal invariant. It is found that such solution may exist provided there exists the direct interaction between the Weyl vector and the matter fields. Assuming the matter Lagrangian is that of the… 

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