EPJ Web Conf.
Volume 125, 201619th International Seminar on High Energy Physics (QUARKS-2016)
|Number of page(s)||10|
|Section||3. Neutrino physics; cosmic rays, astrophysics, cosmology as related to particle physics|
|Published online||28 October 2016|
Cosmological particle creation in conformal gravity
1 Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
2 National Research Nuclear University MEPhI,, Moscow, Russia
Published online: 28 October 2016
We constructed the conformally invariant model for scalar particle creation induced by strong gravitational fields. Starting from the “usual” hydrodynamical description of the particle motion written in the Eulerian coordinates we substituted the particle number conservation law (which enters the formalism) by “the particle creation law”, proportional to the square of the Weyl tensor (following the famous result by Ya. B. Zel‘dovich and A. A. Starobinsky). Then, demanding the conformal invariance of the whole dynamical system, we have got both the (Weyl)-conformal gravity and the Einstein–Hilbert–dilaton gravity action integral. Thus, we obtained something like the induced gravity suggested first by A. D. Sakharov. It is shown that the resulting system is self-consistent. Some future developments of the theory are discussed in the concluding Chapter.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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