Quantum Computing, Quantum Physics, Programming, Physics, Science.
two-qubit example. Simulating σ_i exponentials Suppose we want to simulate e^[i σ_z⊗σ_z t]. The circuit to do this is known to be [1]: R_z on second qubit surrounded by CX gates with first qubit as control and second qubit as target in both sides where the argument to the rotation gate R_z is −2t.