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Independent research demonstrates 12 logical qubits using six stabilizer codes on superconducting processors, suggesting efficient quantum error correction.
Six simultaneous Klein bottle stabilizer codes on IBM Fez (Heron r2, 156 qubits). 12 logical qubits. 144 physical qubits. CV=0.01. Reproduced across 4 independent calibration sessions on 3 IBM Heron r2 processors (IBM Fez, IBM Marrakesh, IBM Kingston) on 2026-03-29 and 2026-03-30. CV=0.01 in all sessions. Jobs ID: d741hmp8qmgc73flhrtg, d7552n5bjrds73ebv320, d755bc7i6gpc73etvf7g, d755csvi6gpc73etvh60. Author: Leonardo Roma, Independent Researcher, Ceccano, ItalyEmail: leonardo.roma@protonmail.comDate: March 2026Live demo: https://kleincode.pythonanywhere.comGitHub: https://github.com/theoricline/klein-bottle-qec Companion papers:Paper 1: Code existence, GSD=4, kill test Z=691σ https://doi.org/10.5281/zenodo.19284050Paper 2: δ-family, topological parameter encoding https://doi.org/10.5281/zenodo.19286677Paper 3: Non-orientable logical algebra, holonomy https://doi.org/10.5281/zenodo.19287977
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