O. (1956) Scalar field theory as a theory of gravitation, Amer. J. Phys. 24, 39 Bergmann, P. G. (1968) Comments on the scalar-tensortheory, Int. J. Theor
the Ricci tensor, g is the metric tensor and R is the scalar curvature. It is used in the Einstein field equations. The stress–energy tensor (sometimes
Simplified overview of scalar-tensor alternatives to standard Einstein theory (页面存档备份,存于互联网档案馆) More details of the Jordan-Brans-Dicke Theory(页面存档备份,存于互联网档案馆)