SPACE-TIME SYMMETRY AND QUANTUM YANG-MILLS GRAVITY: How Space-Time Translational Gauge Symmetry Enables the Unification of Gravity with Other Forces

Yang-Mills gravity is a new theory, consistent with experiments, that brings gravity back to the arena of gauge field theory and quantum mechanics in flat space-time. It provides solutions to long-standing difficulties in physics, such as the incompatibility between Einstein's principle of general coordinate invariance and modern schemes for a quantum mechanical description of nature, and Noether's ‘Theorem II’ which showed that the principle of general coordinate invariance in general rela...