Fig. 5
From: Quantum logic using correlated one-dimensional quantum walks
A quantum-walk-based photonic CNOT gate. a, b The real and imaginary values of the relevant sub-matrix of the two-particle unitary generated by the Hamiltonian in Eq. (6), yielding a photonic CNOT gate with success probability of 1/9. Plots c–f show the photon amplitudes as a function of time
