Tomi S. Koivisto
University of Tartu, Estonia
A unified quadratic action for a flat affine connection is presented and shown to reduce to the symmetric and the metric teleparallel equivalents of General Relativity in specific gauges. Since the gauge symmetry is broken by matter, the minimal coupling principle can distinguish a preferred, "physical" geometry. Based on this, the energy-momentum and the entropy of gravitating systems have been finally calculated uniquely in covariant terms.
2019 December 11, 16:00
Faculdade de Ciências da Universidade de Lisboa (C8.2.16)
Campo Grande, 1749-016 Lisboa