Work

Gravity beyond Einstein? Yes, but in which direction?

Year: 2022

Type: article

Abstract: We present qualitative arguments in favour of an extension of the theory of the gravitational interaction beyond that resulting from the Hilbert-Einstein action. To this end, we consider a locally conformal invariant theory of gravity, discussed some 30 years ago by Mannheim and Kazanas. We discuss its exact solution of the static, spherically symmetric configurations and, based on these, we revisit some of the outstanding problems associated with gravity, high energy interactions and sketch potential resolutions within the conformal gravity framework. This article is part of the theme issue 'The future of mathematical cosmology, Volume 2'.

Source: Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences

DOI: 10.1098/rsta.2021.0367

Authors: Demosthenes Kazanas, Demetrios Papadopoulos, Dimitris Christodoulou

Institutions: Goddard Space Flight Center, Aristotle University of Thessaloniki, University of Massachusetts Lowell

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

OpenAlex ID: W4283800804

FWCI: 0.201

Cites: 19

Cited by: 2

Related to: 10