On the consistency of the constraint algebra in spin network quantum gravity
Rodolfo Gambini, Jerzy Lewandowski, Donald Marolf, Jorge Pullin
Abstract
We point out several features of the quantum Hamiltonian constraints recently introduced by Thiemann for Euclidean gravity. In particular we discuss the issue of the constraint algebra and of the quantum realization of the object qabVb, which is classically the Poisson Bracket of two Hamiltonians.
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