  Dynamical decoupling (DD) is a widely-used quantum control technique that
takes advantage of temporal symmetries in order to partially suppress quantum
errors without the need resource-intensive error detection and correction
protocols. This and other open-loop error mitigation techniques are critical
for quantum information processing in the era of Noisy Intermediate-Scale
Quantum technology. However, despite its utility, dynamical decoupling does not
address errors which occur at unstructured times during a circuit, including
certain commonly-encountered noise mechanisms such as cross-talk and
imperfectly calibrated control pulses. Here, we introduce and demonstrate an
alternative technique - `quantum measurement emulation' (QME) - that
effectively emulates the measurement of stabilizer operators via stochastic
gate application, leading to a first-order insensitivity to coherent errors.
The QME protocol enables error suppression based on the stabilizer code
formalism without the need for costly measurements and feedback, and it is
particularly well-suited to discrete coherent errors that are challenging for
DD to address.
