Quantum field theory of gravity with spin and scaling gauge invariance and spacetime dynamics with quantum inflation

Understand

Treating the gravitational force on the same footing as the electroweak and strong forces, we present a quantum field theory of gravity based on spin and scaling gauge symmetries.

• A biframe spacetime is initiated to describe such a quantum gravity theory.
• The gravifield sided on both locally flat noncoordinate spacetime and globally flat Minkowski spacetime is an essential ingredient for gauging global spin and scaling symmetries.
• The locally flat gravifield spacetime spanned by the gravifield is associated with a noncommutative geometry characterized by a gauge-type field strength of the gravifield.