A new linear-time decoder, UIUF, exploits correlations between X and Z errors in surface and toric codes, guaranteeing correction of errors up to half the code distance and outperforming standard Union-Find and MWPM decoders in simulations.
Error correcting codes in quantum theory,
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Union-Intersection Union-Find for Decoding Depolarizing Errors in Topological Codes
A new linear-time decoder, UIUF, exploits correlations between X and Z errors in surface and toric codes, guaranteeing correction of errors up to half the code distance and outperforming standard Union-Find and MWPM decoders in simulations.