Next Article in Journal
Moving Frames of Reference, Relativity and Invariance in Transfer Entropy and Information Dynamics
Previous Article in Journal / Special Issue
The Thermal Entropy Density of Spacetime
Article Menu

Export Article

Open AccessReview
Entropy 2013, 15(1), 162-176;

Conformal Gravity: Dark Matter and Dark Energy

IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120, USA
Received: 28 August 2012 / Revised: 17 December 2012 / Accepted: 7 January 2013 / Published: 9 January 2013
(This article belongs to the Special Issue Modified Gravity: From Black Holes Entropy to Current Cosmology)
Full-Text   |   PDF [216 KB, uploaded 24 February 2015]


This short review examines recent progress in understanding dark matter, dark energy, and galactic halos using theory that departs minimally from standard particle physics and cosmology. Strict conformal symmetry (local Weyl scaling covariance), postulated for all elementary massless fields, retains standard fermion and gauge boson theory but modifies Einstein–Hilbert general relativity and the Higgs scalar field model, with no new physical fields. Subgalactic phenomenology is retained. Without invoking dark matter, conformal gravity and a conformal Higgs model fit empirical data on galactic rotational velocities, galactic halos, and Hubble expansion including dark energy. View Full-Text
Keywords: dark matter; dark energy; galactic halos dark matter; dark energy; galactic halos
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

MDPI and ACS Style

Nesbet, R.K. Conformal Gravity: Dark Matter and Dark Energy. Entropy 2013, 15, 162-176.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Entropy EISSN 1099-4300 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top