2007/03/29 by E. L. Schücking, Schucking, Engelbert L., Eugene J. Surowitz +1
Physics and Astronomy · #Relativity and Gravitational Theory #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories
paper · pdf · doi:10.48550/arxiv.gr-qc/0703149
After a historical discussion of Einstein's 1907 principle of equivalence, a homogeneous gravitational field in Minkowski spacetime is constructed. It is pointed out that the reference frames in gravitational theory can be understood as spaces with a flat connection and torsion defined through teleparallelism. This kind of torsion was introduced by Einstein in 1928. The concept of torsion is discussed through simple examples and some historical observations.