Entropy 2013, 15(1), 162-176; doi:10.3390/e15010162

Conformal Gravity: Dark Matter and Dark Energy

IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120, USA
Received: 28 August 2012; in revised form: 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)
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Abstract: 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.
Keywords: dark matter; dark energy; galactic halos

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MDPI and ACS Style

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

AMA Style

Nesbet RK. Conformal Gravity: Dark Matter and Dark Energy. Entropy. 2013; 15(1):162-176.

Chicago/Turabian Style

Nesbet, Robert K. 2013. "Conformal Gravity: Dark Matter and Dark Energy." Entropy 15, no. 1: 162-176.

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