Wheeler DeWitt Quantization of Gravity Models of Unified Dark Energy and Dark Matter

by Emil Nissimov

at Particles and Fields Seminar

Mon, 30 Oct 2017, 14:00
Physics building (#54) room 207

Abstract

First we describe a new type of gravity matter models based on the formalism of non Riemannian space time volume forms alternative generally covariant integration measure densities volume elements defined in terms of auxiliary antisymmetric tensor gauge fields Here gravity couples in a non conventional way to two distinct scalar fields providing a unified Lagrangian action principle description of: i the evolution of both early and late Universe by the inflaton scalar field ii dark energy and dark matter as a unified manifestation of a single material entity the darkon scalar field A physically very interesting phenomenon occurs when including in addition interactions with the electro weak model bosonic sector we obtain a gravity assisted dynamical generation of electro weak spontaneous gauge symmetry breaking in the post inflationary late Universe while the Higgs like scalar remains massless in the early Universe Next we proceed to the Wheeler DeWitt minisuperspace quantization of the above models The darkon field plays here the role of cosmological time In particular we show the absence of cosmological space time singularities

Created on 23-10-2017 by Bar Lev, Yevgeny (ybarlev)
Updaded on 23-10-2017 by Bar Lev, Yevgeny (ybarlev)