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Title: Do f(R) theories matter?

Abstract

We consider a modified action functional with a nonminimum coupling between the scalar curvature and the matter Lagrangian, and study its consequences on stellar equilibrium. Particular attention is paid to the validity of the Newtonian regime, and on the boundary and exterior matching conditions, as well as on the redefinition of the metric components. Comparison with solar observables is achieved through numerical analysis, and constraints on the nonminimum coupling are discussed.

Authors:
;  [1]
  1. Instituto Superior Tecnico, Departamento de Fisica, Avenida Rovisco Pais 1, 1049-001 Lisboa (Portugal)
Publication Date:
OSTI Identifier:
21250032
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 77; Journal Issue: 8; Other Information: DOI: 10.1103/PhysRevD.77.084018; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BOUNDARY CONDITIONS; COMPARATIVE EVALUATIONS; COUPLING; EQUILIBRIUM; LAGRANGIAN FUNCTION; MATTER; METRICS; NUMERICAL ANALYSIS

Citation Formats

Bertolami, O, and Paramos, J. Do f(R) theories matter?. United States: N. p., 2008. Web. doi:10.1103/PHYSREVD.77.084018.
Bertolami, O, & Paramos, J. Do f(R) theories matter?. United States. https://doi.org/10.1103/PHYSREVD.77.084018
Bertolami, O, and Paramos, J. 2008. "Do f(R) theories matter?". United States. https://doi.org/10.1103/PHYSREVD.77.084018.
@article{osti_21250032,
title = {Do f(R) theories matter?},
author = {Bertolami, O and Paramos, J},
abstractNote = {We consider a modified action functional with a nonminimum coupling between the scalar curvature and the matter Lagrangian, and study its consequences on stellar equilibrium. Particular attention is paid to the validity of the Newtonian regime, and on the boundary and exterior matching conditions, as well as on the redefinition of the metric components. Comparison with solar observables is achieved through numerical analysis, and constraints on the nonminimum coupling are discussed.},
doi = {10.1103/PHYSREVD.77.084018},
url = {https://www.osti.gov/biblio/21250032}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 8,
volume = 77,
place = {United States},
year = {Tue Apr 15 00:00:00 EDT 2008},
month = {Tue Apr 15 00:00:00 EDT 2008}
}