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On deformations of Ashtekar's constraint algebra | | Kirill Krasnov
; | | Date: |
1 Nov 2007 | | Abstract: | We show that the constraint algebra of Ashtekar’s Hamiltonian formulation of
general relativity can be non-trivially deformed by allowing the cosmological
constant to become an arbitrary function of the (Weyl) curvature. Our result
implies that there is not one but infinitely many (parameterized by an
arbitrary function) four-dimensional gravity theories propagating two degrees
of freedom. | | Source: | arXiv, 0711.0090 | | Services: | Forum | Review | PDF | Favorites | |
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