SPACE, TIME AND FUNDAMENTAL INTERACTIONS

On the way to the Big Bang

Berezin V. A.

We investigate the possibility of “creation from nothing” the homogeneous and isotropic universe using A. D. Sakharov’ idea of the induced gravity (i.e., the gravitation is just the vacuum stresses of all other quantized fields). The created particles as well as the very creation process is described phenomenologically by the modified hydrodynamics of the perfect fluid. The main result — the universe starts from zero scale factor \((a = 0)\). The consequences are far-reaching. First, the hypersurface \(\{a = 0, t = 0\}\) at the moment of the creation is null (light-like), not the space-like. Second, the universe is infinite, i.e., the cosmological model is open or spatially flat. Third, for the observers the boundary goes away with \(\dot a = \infty\), \(\ddot a = -\infty\). Fourth, just outside the boundary (i.e., at the very beginning) the observer feels the infinite vacuum (Unruh’s) temperature. Fifth, the simultaneity (in the common sense) is the illusion: all the infinite number of the created particles can be causally related. Sixth, the Big Bang is not the illusion, it can be the detonation wave with the speed of light.