Speaker
Lavinia Heisenberg
(ETHZ - ETH Zurich)
Description
Modern cosmology postulates dark matter and dark energy. They may be bypassed with generalised theories of gravity, inevitably introducing new scalar, vector, or tensor fields. The gauge fields of particle physics motivate bosonic vector fields. Promising candidates result in Proca-like theories, which can be generalised to scalar-vector-tensor theories. These will have rich cosmological and astrophysical applications.
In Einstein’s theory, non-metricity and torsion vanish, and gravity is attributed to curvature, while the teleparallel representation of general relativity has torsion only. A third equivalent representation ascribes gravity purely to non-metricity. In this approach, the connection vanishes, giving rise to a flat spacetime.
Author
Lavinia Heisenberg
(ETHZ - ETH Zurich)
