Corpus ID: 236447591

Einstein-{\ae}ther Scalar-tensor Cosmology

@inproceedings{Paliathanasis2021EinsteinaetherSC,
  title={Einstein-\{\ae\}ther Scalar-tensor Cosmology},
  author={Andronikos Paliathanasis and Genly Leon},
  year={2021}
}
We propose an Einstein-æther scalar-tensor cosmological model. In particular in the scalar-tensor Action Integral we introduce the æther field with æther coefficients to be functions of the scalar field. This cosmological model extends previous studies on Lorentz-violating theories. For a spatially flat Friedmann–Lemâıtre–Robertson– Walker background space we write the field equations which are of second-order with dynamical variables the scale factor and the scalar field. The physical… Expand

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