Work

Surface Singularities in Eddington-Inspired Born-Infeld Gravity

Year: 2012

Type: article

Abstract: Eddington-inspired Born-Infeld gravity was recently proposed as an alternative to general relativity that offers a resolution of spacetime singularities. The theory differs from Einstein's gravity only inside matter due to nondynamical degrees of freedom, and it is compatible with all current observations. We show that the theory is reminiscent of Palatini f(R) gravity and that it shares the same pathologies, such as curvature singularities at the surface of polytropic stars and unacceptable Newtonian limit. This casts serious doubt on its viability.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.109.251102

Authors: Paolo Pani, Thomas P. Sotiriou

Institutions: Instituto Superior Técnico, Universidade Técnica de Lisboa, Scuola Internazionale Superiore di Studi Avanzati, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1968996302

FWCI: 8.55

Cites: 33

Cited by: 134

Related to: 10