Probabilistic error cancellation for dynamic quantum circuits
Abstract
Probabilistic error cancellation (PEC) is a technique that generates error-mitigated estimates of expectation values from ensembles of quantum circuits. In this work we extend the application of PEC from unitary-only circuits to dynamic circuits with measurement-based operations, such as mid-circuit measurements and classically-controlled (feedforward) Clifford operations. Our approach extends the sparse Pauli-Lindblad noise model to measurement-based operations while accounting for non-local measurement crosstalk in superconducting processors. Our mitigation and monitoring experiments provide a holistic view for the performance of the protocols developed in this work. These capabilities will be a crucial tool in the exploration of near-term dynamic circuit applications.
Cite
@article{arxiv.2310.07825,
title = {Probabilistic error cancellation for dynamic quantum circuits},
author = {Riddhi S. Gupta and Ewout van den Berg and Maika Takita and Diego Riste and Kristan Temme and Abhinav Kandala},
journal= {arXiv preprint arXiv:2310.07825},
year = {2023}
}
Comments
Minor updates to v1