Work

Dynamical mechanism of vacuum energy compensation

Year: 2025

Type: article

Abstract: The model of vacuum energy compensation due to interaction of a scalar field $$\phi $$ ϕ with curvature scalar of the form $$\beta R \phi ^2 f(\phi ) $$ β R ϕ 2 f ( ϕ ) is proposed. It is shown that with a simple power form of $$f(\phi )$$ f ( ϕ ) the exponential expansion, induced by vacuum energy (or what is the same by cosmological constant), is transformed into canonical cosmological evolution of the universe dominated by relativistic matter.

Source: The European Physical Journal C

DOI: 10.1140/epjc/s10052-025-14550-x

Authors: E. V. Arbuzova, A. D. Dolgov

Institutions: Novosibirsk State University, Dubna State University, Joint Institute for Nuclear Research

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funder: Russian Science Foundation

Award: G1861415884