The physical nature of the fundamental scalar field generation and hence the origination of the Universe is a matter of the discussions for many years. We propose to use the statistical approach to the description of the steady states of the quasi stationary systems with the elements of the quantum field theory methods as a basis to explain the appearance of the cosmological scalar field. Particularly, we apply two fundamental principles, i.e., the H-theorem and least-energy principle to show principal possibility of the scalar field origination. Along with the basic statement that in the presence of the fundamental scalar field, the energy of the vacuum ground state is lower than the ground state energy of the vacuum with no scalar field (primary vacuum), and with regard to the nonlinear interaction of fluctuating physical fields with the scalar field, these principles are employed to reveal probable phase transitions that may be associated with origin and further evolution of the Universe. Thus, we propose the possible physical justification of the spontaneous cosmological scalar field generation.
References
[1]
Linde, A.D. (1990) Particle Physics and Inflationary Cosmology. CRC Press, London, New-York, Washington D.C. https://doi.org/10.1016/B978-0-12-450145-4.50004-9
[2]
Fomin, P.I. and Fomina, A.P. (2015) Dark Energy and Dark Matter in the Universe. In: Shulga, V., Ed., Kyiv, Akademperiodik, Vol. 3, 15.
[3]
Fomin, P.I. (1976) Physics of Elementary Particles and Atomic Nuclei, 7, 682.
[4]
Boyle, L., Finn, K. and Turok, N. (2018) Physical Review Letters, 121, Article ID: 251301. https://doi.org/10.1103/PhysRevLett.121.251301
[5]
Gibbs, J.W. (1902) Elementary Principles in Statistical Mechanics, Developed with Especial Reference to the Rational Foundation of Thermodynamics. Charles Scriener’s Sons, New York; Edward Arnold, London. https://doi.org/10.5962/bhl.title.32624
