On the non-minimal gravitational coupling to matter

• Type: Article in International Scientific Journal
• Date: 2008

Authors

Bertolami, O (Author) Other; Paramos, J (Author) Other

Journal

Title: Classical and Quantum Gravity

Vol. 25

Final page: 245017

ISSN: 0264-9381

Publisher: Institute of Physics Publishing

Indexing

ISI Web of Knowledge - 86 Citations

Scopus - 85 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-003-T6M

DOI: 10.1088/0264-9381/25/24/245017

Abstract (EN): The connection between f(R) theories of gravity and scalar-tensor models with a 'physical' metric coupled to the scalar field is well known. In this work, we pursue the equivalence between a suitable scalar theory and a model that generalizes the f(R) scenario, encompassing both a non-minimal scalar curvature term and a non-minimum coupling of the scalar curvature and matter. This equivalence allows for the calculation of the PPN parameters beta and gamma and, eventually, a solution to the debate concerning the weak-field limit of f(R) theories.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 16