Jacob Bekenstein Created 2026-10-20 Updated 2026-11-05
Jacob Bekenstein developed tensor-vector-scalar gravity, a relativistic theory intended to realize modified Newtonian dynamics. The construction supplements the metric tensor with dynamical scalar fields and vector fields.
A nonrelativistic rule for stellar motion alone does not determine how light bends. His 2004 theory addressed both slow-particle dynamics and gravitational lensing, while examining the high-acceleration limit and Solar-System tests. This made the proposal a broader physical framework with multiple observational consequences, rather than merely a fit to a galaxy rotation curve.[ref]
Relativistic gravitation theory for the MOND paradigm by Jacob Bekenstein. Abstract: dynamical fields, Newtonian and MOND limits, post-Newtonian tests and lensing
Portrait of Jacob Bekenstein
. Wikimedia contributor Bekenstein; photograph dated 31 July 2009; existing crop by Xochiztli. Public-domain dedication by copyright holder, worldwide, via Wikimedia Commons. Source. Tensor-vector-scalar gravity 2026-10-20
A relativistic gravitational theory constructed by Jacob Bekenstein using tensor, vector and scalar fields, together with a specified physical metric for matter. It illustrates how the low-acceleration phenomenology of MOND can be embedded in a theory with calculable light deflection. Matching rotation curves is not sufficient to establish its lensing or cosmological predictions.[ref]
Relativistic gravitation theory for the MOND paradigm by Jacob Bekenstein. Relativistic action and physical metric