Eddington-inspired Born-Infeld gravity: nuclear physics constraints and the validity of the continuous fluid approximation

Journal Article · Thu Nov 01 00:00:00 EDT 2012 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2012/11/022· OSTI ID:22279739

Avelino, P.P., E-mail: [e-mail] ^[1]

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1. Centro de Astrofísica da Universidade do Porto, Rua das Estrelas, 4150-762 Porto (Portugal)

In this paper we investigate the classical non-relativistic limit of the Eddington-inspired Born-Infeld theory of gravity. We show that strong bounds on the value of the only additional parameter of the theory κ, with respect to general relativity, may be obtained by requiring that gravity plays a subdominant role compared to electromagnetic interactions inside atomic nuclei. We also discuss the validity of the continuous fluid approximation used in this and other astrophysical and cosmological studies. We argue that although the continuous fluid approximation is expected to be valid in the case of sufficiently smooth density distributions, its use should eventually be validated at a quantum level.

• OSTI ID: 22279739
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2012, Issue 11; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
APPROXIMATIONS
ASTROPHYSICS
BORN-INFELD THEORY
COMPARATIVE EVALUATIONS
COSMIC NUCLEI
COSMOLOGY
DENSITY
ELECTROMAGNETIC INTERACTIONS
GENERAL RELATIVITY THEORY
GRAVITATION
RELATIVISTIC RANGE