On the reconstruction problem in Quantum Gravity

Understand

Path integrals and the Wilsonian renormalization group provide two complementary computational tools for investigating continuum approaches to quantum gravity.

• The starting points of these constructions utilize a bare action and a fixed point of the renormalization group flow, respectively.
• While it is clear that there should be a connection between these ingredients, their relation is far from trivial.
• This results in the so-called reconstruction problem.