Using a non-minimal coupling between matter and curvature to sequester the cosmological constant

• Type: Article in International Scientific Journal
• Date: 2020

Authors

Bertolami, O (Author) FCUP; Jorge Páramos (Author) FCUP

Journal

Title: General Relativity and Gravitation

Vol. 52

ISSN: 0001-7701

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 4 Citations

Other information

Authenticus ID: P-00S-0VB

DOI: 10.1007/s10714-020-02695-x

Abstract (EN): We present a novel mechanism for generating a cosmological constant and suitably sequestering the vacuum contribution to it, so that the eponymous cosmological constant problem is avoided. We do so by resorting to a model endowed with a non-minimal coupling between curvature and matter in an appropriately defined relaxed regime, and show that this shares features with both unimodular gravity as well as a recent proposal to sequester the vacuum contribution through the use of an external term to the action functional.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7