LAUSR

We use a gradient-based optimization scheme to find single-qubit rotations to be interwoven between time steps of a noisy logical two-qubit entangling gate in order to suppress the effects of arbitrary logical and leakage noise in the two-qubit gate. We show how the sequence fidelity is affected by imperfections in the single-qubit operations, as well as by various relative strengths of the logical and leakage noise. Our approach is completely general and system-independent, allowing for application to any two-qubit system regardless of the experimental implementation details.