{"paper":{"title":"Quantum metrology via partial quantum error correction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Encoding sensing probes as superpositions of energetically distinct states in a quantum code allows only partial error correction to suppress local noise and retain super-SQL precision.","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Sisi Zhou, Yinan Chen, Zongyuan Wang","submitted_at":"2026-05-08T18:00:06Z","abstract_excerpt":"We introduce a method for error-corrected quantum metrology where only partial quantum error correction (QEC) is needed to suppress local noise and maintain the probe states' super-standard-quantum-limit (super-SQL) sensing performance. This stands in contrast to the existing QEC-assisted sensing schemes in Phys. Rev. Lett. 112, 080801 (2014) and Phys. Rev. Lett. 112, 150802 (2014), where a probe state is encoded into the logical subspace of a quantum code and error correction involves measurements on all checks of the code. Here, we encode the probe states into superpositions of energetically"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"We introduce a new method for error-corrected quantum metrology where only partial quantum error correction (QEC) is needed to suppress local noise and maintain the probe states' super-standard-quantum-limit (super-SQL) sensing performance.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That encoding the probe into superpositions of energetically different states of the underlying quantum code allows error correction with only a subset of checks to suppress noise both before and after phase imprinting.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Partial QEC on superpositions of code states suppresses local noise in quantum metrology with fewer checks than full QEC, achieving p to the power floor((l+1)/2) suppression for weight-l noise.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Encoding sensing probes as superpositions of energetically distinct states in a quantum code allows only partial error correction to suppress local noise and retain super-SQL precision.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"7f5c7db6f2be94726878a826d233eb4225c6fe9d68a6587c935b077181d548fe"},"source":{"id":"2605.08341","kind":"arxiv","version":2},"verdict":{"id":"65ae6b8a-09fe-47c3-9d3c-3a5d26df3338","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-12T00:47:11.691345Z","strongest_claim":"We introduce a new method for error-corrected quantum metrology where only partial quantum error correction (QEC) is needed to suppress local noise and maintain the probe states' super-standard-quantum-limit (super-SQL) sensing performance.","one_line_summary":"Partial QEC on superpositions of code states suppresses local noise in quantum metrology with fewer checks than full QEC, achieving p to the power floor((l+1)/2) suppression for weight-l noise.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That encoding the probe into superpositions of energetically different states of the underlying quantum code allows error correction with only a subset of checks to suppress noise both before and after phase imprinting.","pith_extraction_headline":"Encoding sensing probes as superpositions of energetically distinct states in a quantum code allows only partial error correction to suppress local noise and retain super-SQL precision."},"integrity":{"clean":false,"summary":{"advisory":1,"critical":0,"by_detector":{"doi_compliance":{"total":1,"advisory":1,"critical":0,"informational":0}},"informational":0},"endpoint":"/pith/2605.08341/integrity.json","findings":[{"note":"DOI in the printed bibliography is fragmented by whitespace or line breaks. 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