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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2020

Autores

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

Revista

Título: General Relativity and Gravitation

Vol. 52

ISSN: 0001-7701

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 4 Citações

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7