Graph with edges labelled by SU(2) representations (half-integer j) and vertices by SU(2) intertwiners. Orthonormal basis of the gauge-invariant kinematical Hilbert space of LQG (Penrose 1971, rediscovered 1995).
Graph with edges labelled by SU(2) representations (half-integer j) and vertices by SU(2) intertwiners. Orthonormal basis of the gauge-invariant kinematical Hilbert space of LQG (Penrose 1971, rediscovered 1995).