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Any link between Plebanski and McDowell-Mansouri formulations of GR?

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ubugnu
#1
Mar4-10, 10:25 AM
P: 3
Bonjour,
The two can be related to a BF theory, the Plebanski one is the basis of the spin-foam model, the MacDowell-Mansouri one appears the more "natural" in the context of Cartan geometry. Is the fact that they can both be expressed as a deformed BF theory the only link between them?
Merci.
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