| Issue |
EPJ Web Conf.
Volume 191, 2018
XXth International Seminar on High Energy Physics (QUARKS-2018)
|
|
|---|---|---|
| Article Number | 07013 | |
| Number of page(s) | 9 | |
| Section | Gravity and its Modifications | |
| DOI | https://doi.org/10.1051/epjconf/201819107013 | |
| Published online | 31 October 2018 | |
https://doi.org/10.1051/epjconf/201819107013
Cosmological bounce in Horndeski theory and beyond
1
Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect, 7a, 117312 Moscow, Russia
2
Department of Particle Physics and Cosmology, Physics Faculty, M.V. Lomonosov Moscow State University, Vorobjevy Gory, 119991 Moscow, Russia
3
Institute for Theoretical and Experimental Physics, Bolshaya Cheriomyshkinskaya, 25, 117218 Moscow, Russia
4
Department of Physics, Princeton University, Princeton, New Jersey 08544, USA
* e-mail: volkova.viktoriya@physics.msu.ru 1Recently beyond Horndeski theories were generalized to the so called DHOST theories (see e.g. Ref. [3]).
Published online: 31 October 2018
We discuss the stability of the classical bouncing solutions in the general Horndeski theory and beyond Horndeski theory. We restate the no-go theorem, showing that in the general Horndeski theory there are no spatially flat non-singular cosmological solutions which are stable during entire evolution. We show the way to evade the no-go in beyond Horndeski theory and give two specific examples of bouncing solutions, whose asymptotic past and future or both are described by General Relativity (GR) with a conventional massless scalar field. Both solutions are free of any pathologies at all times.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.