Speaker
Edward Wilson-Ewing
(Max Planck Institute for Gravitational Physics (Albert Einstein)
Description
I will explain how the large-scale cosmological dynamics can be obtained from the hydrodynamics of condensate states of quantum gravity (to be specific, isotropic group field theory condensate states in the Gross-Pitaevskii approximation). The correct Friedmann equations are recovered in the semi-classical limit for appropriate choices of the parameters in the action for the group field theory, and quantum gravity corrections arise in the high-curvature regime causing a bounce which generically resolves the big-bang and big-crunch singularities.
Primary author
Edward Wilson-Ewing
(Max Planck Institute for Gravitational Physics (Albert Einstein)
