# Quantum gravity in terms of topological observables

@article{Freidel2005QuantumGI, title={Quantum gravity in terms of topological observables}, author={Laurent Freidel and Artem Starodubtsev}, journal={arXiv: High Energy Physics - Theory}, year={2005} }

We recast the action principle of four dimensional General Relativity so that it becomes amenable for perturbation theory which doesn't break general covariance. The coupling constant becomes dimensionless (G_{Newton} \Lambda) and extremely small 10^{-120}. We give an expression for the generating functional of perturbation theory. We show that the partition function of quantum General Relativity can be expressed as an expectation value of a certain topologically invariant observable. This sets…

## 31 Citations

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