Abstract:
The birth of the Universe is being studied as an evolution of an initial scalar field into other fields (particles), energies, waves and vortices. The scalar field is described by a cubic nonlinear multidimensional Klein-Gordon equation. The approximate solutions are presented. They describe scalar fields, scalar potentials and a weakly oscillating pra-Universe. At any moment this model gives a birth to the billions of ‘seeds’ of rapidly evolving Universes. One of them accidentally formed our Universe during the quantum tunnelling. The strongly-nonlinear model of the birth is developed in which all elements fit together in a tight and natural way. The birth of the particles, mass and temperature is directly related to the tunnelling, strongly nonlinear properties of the quantum scalar fields and the resonant oscillations. Some energy of the fields is converted into particles. They could work like a scaffold creating the four-dimensional spacetime. Some highly energetic particles could be very stable. Perhaps, these particles had been stable for billions of years before they begun to decay. This process can determine the law of expansion the modern Universe. On the other hand, these particles may correspond to the dark matter. However, the bulk of the initial energy remained unused. Perhaps, this energy was locked into the formed four-dimensional spacetime. This energy may correspond to the dark energy. The Universe is considered as a wave system. A scenario is developed, when the Universe begins in a state that differs greatly from that of the theories of the Big Bang and the inflation. The Universe was born having a finite volume. We believe that the coherent model for the emergence and initial evolution of the Universe is presented.
