404 citations · 3.5k across the 79 of their papers we have counts for
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gr-qc2006★ 4 cited
The Ponzano-Regge model and Reidemeister torsion
John W. Barrett, Ileana Naish-Guzman
The Ponzano-Regge model of three-dimensional quantum gravity is well-defined when the observables satisfy a certain condition involving the twisted cohomology. In this case, the pa…
hep-th2006★ 156 cited
A Lorentzian version of the non-commutative geometry of the standard model of particle physics
John W. Barrett
A formulation of the non-commutative geometry for the standard model of particle physics with a Lorentzian signature metric is presented. The elimination of the fermion doubling in…
hep-th2006★ 10 cited
Non-commutative geometry and the standard model vacuum
John W. Barrett, Rachel A. Dawe Martins
The space of Dirac operators for the Connes-Chamseddine spectral action for the standard model of particle physics coupled to gravity is studied. The model is extended by including…