2014/12/31 by Ahmad Borzou · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Gauge theory #Introduction to gauge theory #Lorentz covariance #Noncommutative and Quantum Gravity Theories #Quantization (signal processing) #Quantum gravity #Relativity and Gravitational Theory #Schwarzschild geodesics #Schwarzschild metric #Schwarzschild radius #Spacetime #gr-qc #hep-th
paper · pdf · doi:10.1088/0264-9381/33/2/025008
published in Classical and Quantum Gravity 33(2), 025008 (IOP Publishing) · 13 pages, 5 figures, accepted for publication in CQG
arxiv created 2015/12/13 · openalex publication_date 2015/12/22 · openalex created_date 2016/06/24 · arxiv updated 2016/10/27 · openalex updated_date 2026/08/05
We present a Lorentz gauge theory of gravity in which the metric is not dynamical. Spherically symmetric weak field solutions are studied. We show that this solution contains the Schwarzschild spacetime at least to the first order of perturbation. Next, we present a special case of the theory. It is shown that the Schwarzschild metric is now an exact solution. Moreover, we show that the de Sitter space is an exact vacuum solution and as a result the theory is able to explain the expansion of the universe with no need for a dark energy. Within this special case, quantization of the theory is also studied. The basic Feynman diagrams are derived and renormalizability of the theory is studied using the power-counting method. We show that under a certain condition the theory is power-counting renormalizable.