Exact Results in Quantum Theory

Spin Foams is a covariant approach to Loop Quantisation of Gravity. So far it has had some physical predictions such as calculation of graviton propagator. A new model, Dipol Cosmology, is an application of Spin Foams' ideas to the cosmological case. The results are very optymistic, because in the classical limit the evolution of the model gives well known Friedmann equation.