Polyestimate: instantaneous open source surface code analysis

TL;DR

Polyestimate is an open source tool that allows users to easily estimate logical error rates in surface code quantum computing based on physical gate error models, facilitating practical quantum error correction analysis.

Contribution

The paper introduces Polyestimate, a user-friendly open source library for rapid estimation of logical error rates in surface code quantum computing from physical error models.

Findings

Provides accurate logical error rate estimates from physical error data.

Supports simple depolarizing error models for ease of use.

Enhances accessibility for users without deep surface code knowledge.

Abstract

The surface code is highly practical, enabling arbitrarily reliable quantum computation given a 2-D nearest-neighbor coupled array of qubits with gate error rates below approximately 1%. We describe an open source library, Polyestimate, enabling a user with no knowledge of the surface code to specify realistic physical quantum gate error models and obtain logical error rate estimates. Functions allowing the user to specify simple depolarizing error rates for each gate have also been included. Every effort has been made to make this library user-friendly.