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- Title
The Hubble tension from the standpoint of quantum cosmology.
- Authors
Kuzmichev, V. E.; Kuzmichev, V. V.
- Abstract
The Hubble tension is analyzed in the framework of quantum cosmological approach. It is found that there arises a new summand in the expression for the total energy density stipulated by the quantum Bohm potential. This additional energy density acts similarly to a stiff matter component, modifying the expansion history of the early universe and decaying with scale factor a as a - 6 , faster than radiation, in late universe. Taking account of this matter-energy component of quantum nature can, in principle, eliminate a discrepancy between the direct late time model-independent measurements of the Hubble constant and its indirect model dependent estimates. The considered model allows one to extend the standard cosmology to quantum sector.
- Subjects
QUANTUM cosmology; PHYSICAL cosmology; ENERGY density; TIME measurements; HUBBLE constant; RADIATION; FRIEDMANN equations
- Publication
European Physical Journal C -- Particles & Fields, 2024, Vol 84, Issue 2, p1
- ISSN
1434-6044
- Publication type
Article
- DOI
10.1140/epjc/s10052-024-12490-6