Open AccessDecrease of the effective cosmological constant in the Poincare gauge theory of gravity with a scalar field
Author(s) -
O. V. Babourova,
B. N. Frolov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2081/1/012015
Subject(s) - cosmological constant , physics , poincaré conjecture , perfect cosmological principle , theoretical physics , scalar field , scale factor (cosmology) , mathematical physics , metric expansion of space , classical mechanics , cosmology , dark energy , quantum mechanics
Cosmological consequences of the Poincare gauge theory of gravity are considered. An effective cosmological constant depending from the Dirac scalar field is introduced. It is proved that at the super-early Universe, the effective cosmological constant decreases exponentially from a huge value at the Big Bang to its extremely small value in the modern era, while the scale factor sharply increases and demonstrates inflationary behavior. This fact solves the well-known “cosmological constant problem” also in the Poincare gauge theory of gravity.