%0 Journal Article
%T Possible Explanation of the Dynamics of the Universe Expansion without Dark Energy and without New Gravitational Degrees of Freedom
%A Eugene Oks
%J Open Journal of Microphysics
%P 1-7
%@ 2162-2469
%D 2021
%I Scientific Research Publishing
%R 10.4236/ojm.2021.111001
%X The commonly accepted view is that the Universe is currently in the dark energy dominance era (estimated to start about 5 billion years ago)¡ªthe era where yet unknown dark energy dominates over the gravitation and is responsible for the observed acceleration of the Universe expansion. In the present paper, we consider a ¡°gas¡± of a large number of gravitating neutral nonrelativistic particles having a practically infinite lifetime and zero or very little interaction with the rest of the matter (neutrinos could be an example). One of the central points is the application of Dirac¡¯s Generalized Hamiltonian Dynamics to pairs of these particles. Another central point is the application of the virial theorem to pairs of zero total energy. We demonstrate that as a result, the gravitational interaction within the entire system effectively decreases. Together with the observational fact of the Universe rotation (according to Shamir¡¯s study of 2020), this model provides a possible explanation of the entire history of the Universe expansion: both the era of the decelerating expansion and the current era of the accelerated expansion.
%K Dynamics of the Universe Expansion
%K No Dark Energy Required
%K No Massive Gravity Required
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=107803