We describe how the holographic approach to quantum gravity might be used to give a full-fledged quantum gravity description of big-bang cosmology. The resulting cosmological models have a negative cosmological constant but can generically explain late-time acceleration due to the potential energy of time-dependent scalar fields associated with relevant scalar operators in the CFT. If such...
The AdS/CFT correspondence gives a remarkable description of a system with gravity in terms of a non-gravitating, quantum mechanical theory. Importantly, the geometry of the gravitating theory is recorded into the pattern of entanglement in the dual quantum mechanical system. This gives a new way of thinking about gravitational physics in terms of entanglement, but also gives a geometrical way...
We present a classical theory of gravity, which is singularity free at short distances and reduces to General Relativity at large distances. We discuss its implications for quantum gravity and cosmology.
