Fig. 2: Reconstructed matrix.
From: Experimental simulation of loop quantum gravity on a photonic chip
The top row shows the matrix amplitudes for the experimentally observed matrix (a) and for the target matrix (b). The second row shows the matrix element’s phases for the experiment (c) and target (d), respectively. The reduced 8 × 4 matrix, connected to the 4-simplex transformation, is marked by a red box.
