Bumblebee field as a source of cosmological anisotropies

@article{Maluf2021BumblebeeFA,
  title={Bumblebee field as a source of cosmological anisotropies},
  author={Roberto Vinhaes Maluf and Juliano C. S. Neves},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2021},
  volume={2021}
}
  • R. V. Maluf, J. Neves
  • Published 18 May 2021
  • Physics
  • Journal of Cosmology and Astroparticle Physics
In this work, a bumblebee field is adopted in order to generate cosmological anisotropies. For that purpose, we assume a Bianchi I cosmology, as the background geometry, and a bumblebee field coupled to it. Bumblebee models are examples of a mechanism for the Lorentz symmetry violation by assuming a nonzero vacuum expectation value for the bumblebee field. When coupled to the Bianchi I geometry, which is not in agreement with a cosmological principle, the bumblebee field plays the role of a… 
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