This article is cited in 2 papers

Cosmological constant, scalar field, and the coincidence problem

V. I. Kochkin

Saint Petersburg State University, Saint Petersburg, Russia

Abstract: We study a phenomenological model in which dark matter in the cosmological constant form is identified with the mean energy–momentum tensor of a causally unrelated region. The dynamics of the parameter introduced in this model are considered, a possible method for solving the coincidence problem is proposed. We also find the form of the scalar field potential corresponding to the presented model.

Keywords: cosmological constant, inflationary expansion, scalar field.

PACS: 04.20.−q

MSC: 83C05

Received: 01.04.2022
Revised: 10.04.2022

DOI: 10.4213/tmf10293

 English version: Theoretical and Mathematical Physics, 2022, 212:3, 1303–1311

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