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The face amplitude of spinfoam quantum gravity
2010
Classical and quantum gravity
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The structure of the boundary Hilbert-space and the condition that amplitudes behave appropriately under compositions determine the face amplitude of a spinfoam theory. In quantum gravity the face amplitude turns out to be simpler than originally thought.
doi:10.1088/0264-9381/27/18/185009
fatcat:7wngajf5dbadbfhlm56z7fss5m