Barrett-Crane spin foam model from generalized BF-type action for gravity

Details Barrett-Crane spin foam model from generalized BF-type action for gravity Barrett-Crane spin foam model from generalized BF-type action for gravity

2001-04-15

arxiv.org/abs/gr-qc/0104043v3

Phys.Rev. D65 (2002) 044025

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

15 pages, revtex; a sign corrected (area spectrum); some of these results were presented in a preliminary form in gr-qc/010308

Scientific paper

10.1103/PhysRevD.65.044025

We study a generalized action for gravity as a constrained BF theory, and its
relationship with the Plebanski action. We analyse the discretization of the
constraints and the spin foam quantization of the theory, showing that it leads
naturally to the Barrett-Crane spin foam model for quantum gravity. Our
analysis holds true in both the Euclidean and Lorentzian formulation.

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