There is no greater mystery in physics, than the force of gravity beyond Einstein's theory. I am most interested in the emergence of space-time from a more fundamental sub-structure, and the renormalization sector of quantum gravity, and possible massive fields that would generate a Yukawa-type fifth force, breaking the equivalence principle at astrophysical distances, and providing a modified gravity alternative to dark matter.

Active Research Topics 2023 -- 2024

Quadratric Quantum Gravity (QQG) – A candidate for a perturbatively renormalizable quantization of Einstein's Gravity Theory.

Selected Publications

Modified Gravity (MoG), Scalar Tensor Vector Gravity (STVG), Metric Skew-Tensor Gravity (MSTG), Nonsymmetric Gravity Theory (NGT), Modified Newtonian Dynamics (MoND)

 PhRvD (1990 ) 41 3111
 3 Citations
Spinning test particles and the motion of a gyroscope according to the nonsymmetric gravitation theory
 ApJ (2006 ) 636 721
 265 Citations
Galaxy Rotation Curves without Nonbaryonic Dark Matter
 MNRAS (2006 ) 367 527
 143 Citations
Galaxy cluster masses without non-baryonic dark matter
 CQGra (2006 ) 23 3427
 72 Citations
Gravitational solution to the Pioneer 10/11 anomaly
 MNRAS (2007 ) 382 29
 155 Citations
The Bullet Cluster 1E0657-558 evidence shows modified gravity in the absence of dark matter
 PhDT (2009 ) None None
 25 Citations
Modified gravity and the phantom of dark matter