Extended Data Fig. 3: The quantum process matrix for Fock encoding.
From: Entanglement of bosonic modes through an engineered exchange interaction
The real (left) and imaginary (right) components of the complex process matrix χ are shown for the input (a), the identity operation (b), \(\sqrt{\mathrm{SWAP}}\) (c) and SWAP (d). For each operation, we show the measured (top) and ideal (bottom) matrices for comparison. Each of the measured process matrices are calculated without correction for SPAM errors. The colour scale shows the value for each (real or imaginary) component of the respective process matrices.
