404 citations · 3.5k across the 79 of their papers we have counts for
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gr-qc1999★ 276 cited
A Lorentzian Signature Model for Quantum General Relativity
John W. Barrett, Louis Crane
We give a relativistic spin network model for quantum gravity based on the Lorentz group and its q-deformation, the Quantum Lorentz Algebra. We propose a combinatorial model for th…
gr-qc1999★ 2 cited
The Quantum Tetrahedron in 3 and 4 Dimensions
John C. Baez, John W. Barrett
Recent work on state sum models of quantum gravity in 3 and 4 dimensions has led to interest in the `quantum tetrahedron'. Starting with a classical phase space whose points corres…