12
votes
3answers
862 views

What is the current state of research in quantum gravity?

I was browsing through this and was wondering what progress in quantum gravity research has taken place since the (preprint) publication. If anyone can provide some helpful feedback I would be ...
2
votes
1answer
33 views

Time Evolution of a Manifold Embedding

Given a smooth manifold $\mathcal{M}$ with a simplicial complex embedding $\mathsf{S}$, what specific tools or methods can be used to give an analysis of the time evolution of the manifold given some ...
15
votes
6answers
475 views

Classic Literature in Quantum Gravity?

I've seen it said in various places that a major reason people like string theory as a theory of quantum gravity is that it does a good job of matching our prejudices about how a quantum gravity ...
13
votes
1answer
159 views

6d Massive Gravity

Massive gravity (with a Fierz-Pauli mass) in 4 dimensions is very well-studied, involving exotic phenomena like the vDVZ discontinuity and the Vainshtein effect that all have an elegant and physically ...
2
votes
2answers
489 views

Three-Dimensional Gravity

Does anyone have any references that discuss gravity in three-dimensions? I'm trying to make my way through some papers by Witten relating $SL(2,\mathbb{C})$ Chern-Simons theory and gravity in three ...