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Inflationary Solutions in the Simplest Gravity Model with Conformal Symmetry

  • PHYSICS OF ELEMENTARY PARTICLES AND ATOMIC NUCLEI. THEORY
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Abstract

We discuss a model of gravity with conformal symmetry appearing in the simplest extension of General Relativity with the Poincaré algebra terms. The nonlinear realization of symmetry causes the existence of five scalar fields. Therefore it looks desirable to use them for driving the inflation at the earliest stages of the Universe evolution. It is shown that the evolution of the scale factor depends on the number of fields included in the Lagrangian, but there are no inflationary solutions in this model. To drive inflation a more complicated model induced by extension of the Poincare algebra is required.

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ACKNOWLEDGMENTS

The authors would like to thank Dr. Boris Latosh for the useful discussions and critical notes on the subject of the paper.

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Authors and Affiliations

  1. Sternberg Astronomical Institute, Lomonosov Moscow State University, 119234, Moscow, Russia

    S. Alexeyev

  2. Department of Quantum Theory and High Energy Physics, Faculty of Physics, Lomonosov Moscow State University, 119991, Moscow, Russia

    S. Alexeyev

  3. Physics Department, Bauman Moscow State Technical University, 105005, Moscow, Russia

    D. Krichevskiy

Authors
  1. S. Alexeyev
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  2. D. Krichevskiy
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Correspondence to S. Alexeyev or D. Krichevskiy.

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Alexeyev, S., Krichevskiy, D. Inflationary Solutions in the Simplest Gravity Model with Conformal Symmetry. Phys. Part. Nuclei Lett. 18, 128–130 (2021). https://doi.org/10.1134/S1547477121020035

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  • DOI: https://doi.org/10.1134/S1547477121020035

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