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Quantum gravity in terms of topological observables | | Laurent Freidel
; Artem Starodubtsev
; | | Date: |
24 Dec 2004 | | Subject: | hep-th gr-qc | | Abstract: | 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 up a framework in which quantum gravity can be studied perturbatively using the techniques of topological quantum field theory. | | Source: | arXiv, hep-th/0501191 | | Services: | Forum | Review | PDF | Favorites | |
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