Seminarium Teorii Względności i Grawitacji

Spin-foam theory is a path integral approach to the problem of Quantum Gravity. It has been conjectured that it is a covariant formulation of Loop Quantum Gravity but precise link between the theories has been an open problem for many years. In my talk I will present a spin-foam model that we have derived recently from canonical Loop Quantum Gravity coupled to massless scalar field.