The utility of quantum computers for simulating lattice gauge theories is currently limited by
the noisiness of the physical hardware. Various quantum error mitigation strategies exist to
reduce the statistical and systematic uncertainties in quantum simulations via improved
algorithms and analysis strategies. We perform quantum simulations of Z 2 gauge theory
with matter to study the efficacy and interplay of different error mitigation methods: readout
error mitigation, randomized compiling, rescaling, and dynamical decoupling. We compute …