Bacon-Shor Board Games

Fuente: arXiv
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Autori principali: Alam, M. Sohaib, Zen, Jun, Scruby, Thomas R.
Natura: Preprint
Pubblicazione: 2025
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author Alam, M. Sohaib
Zen, Jun
Scruby, Thomas R.
author_facet Alam, M. Sohaib
Zen, Jun
Scruby, Thomas R.
contents We identify a period-4 measurement schedule for the checks of the Bacon-Shor code that fully covers spacetime with constant-weight detectors, and is numerically observed to provide the code with a threshold. Unlike previous approaches, our method does not rely on code concatenation and instead arises as the solution to a coloring game on a square grid. Under a uniform circuit-level noise model, we observe a threshold of approximately $0.3\%$ when decoding with minimum weight perfect matching, and we conjecture that this could be improved using a more tailored decoder.
format Preprint
id arxiv_https___arxiv_org_abs_2504_02749
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Bacon-Shor Board Games
Alam, M. Sohaib
Zen, Jun
Scruby, Thomas R.
Quantum Physics
Information Theory
We identify a period-4 measurement schedule for the checks of the Bacon-Shor code that fully covers spacetime with constant-weight detectors, and is numerically observed to provide the code with a threshold. Unlike previous approaches, our method does not rely on code concatenation and instead arises as the solution to a coloring game on a square grid. Under a uniform circuit-level noise model, we observe a threshold of approximately $0.3\%$ when decoding with minimum weight perfect matching, and we conjecture that this could be improved using a more tailored decoder.
title Bacon-Shor Board Games
topic Quantum Physics
Information Theory
url https://arxiv.org/abs/2504.02749