Self-creation cosmology - a review

TL;DR

This review covers the development and testing of self-creation cosmology (SCC), highlighting its theoretical evolution, experimental challenges, and potential to explain cosmological and gravitational anomalies.

Contribution

It provides a comprehensive review of SCC theories, including the 2002 version, and discusses how recent experiments can distinguish SCC from general relativity.

Findings

2002 SCC theory aligns with previous tests but was falsified by Gravity Probe B.

Reformulating the 2002 theory restores agreement with GP-B.

Future experiments can resolve the SCC-GR degeneracy.

Abstract

Over 60 authors have worked on various versions of self-creation cosmology (SCC) since the original paper in 1982. These papers adapted the Brans Dicke theory to create mass out of the universe's self contained scalar, gravitational and matter fields. The most recent 2002 version of the theory was concordant with all previous standard tests of GR but was falsified by the Gravity Probe B geodetic precession experiment. Here the different versions of the theory are reviewed and it is noted that the 2002 theory not only reduces to the second 1982 theory when cast into a the 'true' form of the scalar field stress-energy tensor but also in that form it passes the GP-B test. Further experiments are able to resolve the SCC-GR degeneracy, one of which is briefly described. SCC may be able to explain some intriguing anomalies also, in the spherically symmetric One-Body problem, it transpires that the temporal Newtonian potential is three times larger than the spatial one. Cosmological solutions to the field equations, which have been published elsewhere, are extended to show that the cosmological density parameter Omega =1.