109 citations · 236 across the 6 of their papers we have counts for
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hep-th2005★ 109 cited
Quantum gravity in terms of topological observables
Laurent Freidel, Artem Starodubtsev
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 const…
hep-th2003★ 42 cited
General relativity with a topological phase: an action principle
Lee Smolin, Artem Starodubtsev
An action principle is described which unifies general relativity and topological field theory. An additional degree of freedom is introduced and depending on the value it takes th…
hep-th2003★ 16 cited
Topological excitations around the vacuum of quantum gravity I: The symmetries of the vacuum
Artem Starodubtsev
This is the first paper in a series in which an attempt is made to formulate a perturbation theory around the the Chern-Simons state of quantum gravity discovered by Kodama. It is…