Figure 4

A symbolic circuit for two mesonic Trotter steps (yellow), followed by a baryonic evolution (blue) for the state \(|{\psi _{0}}\rangle = (|{+}\rangle |{0}\rangle |{+}\rangle )^{\otimes L}\) with linear extent \(L = 4\) and open boundary conditions. Each of the mesonic Trotter steps corresponds to a sequential application of the gates defined in Fig. 1 and Fig. 6, where the two-qubit control is visible in the first layer