On quantum cosmology as field theory of bosonic string mass groundstate

TL;DR

This paper explores quantum cosmology by modeling the universe as a bosonic string's groundstate tachyon, using canonical quantization and proposing an extremal tachyon mass model to analyze cosmic evolution and dark matter.

Contribution

It introduces a novel approach to quantum cosmology by treating the universe as a bosonic string groundstate and develops a specific extremal tachyon mass model for cosmological analysis.

Findings

Formulation of second quantization of the universe as a bosonic string in Fock space.

Derivation of the Hubble evolution parameter within the extremal tachyon mass model.

Estimation of the universe's temperature and dark matter equation of state from the model.

Abstract

The Quantum Cosmology can be understand as the theory of an one object that is the Universe described in terms of fundamental mass groundstate of the free boson string, that is a tachyon - a hypothetical particle with negative mass square, which has linear velocity more than the velocity of light c. From this fact it is clear that whole information about physics of our Universe is focused on studying of this untypical particle physics. In this paper this point of view is touched up on. As the general-relativistic model of our Universe we study the Einstein-Friedmann Spacetime. Firstly, the way of canonical quantization beginning from first quantization of the Dirac Hamiltonian constraints up to the second quantization by the Von Neumann-Araki-Woods quantization in the Fock space is briefly discussed. We show that using of the Bogoliubov-Heinsenberg static operator basis leads to formulation of the second quantization of the considered free boson string in terms of the monodromy in the Fock space. Finally, we propose some specific model of the Universe - the extremal tachyon mass model, and in frames of its the Hubble evolution parameter, the equation of state for Dark Matter in the Universe, and the temperature of our Universe are concluded.