Latest posts tagged with #quantumerrorcorrection on Bluesky
8 books. One stack. The full QEC pipeline from foundations to the LCL-832 framework - stabilizer codes, fault tolerance, encoding circuits, and the research layer on top.
$59.99 for everything.
itch.io/s/183204/qec...
#QuantumComputing #QEC #QuantumErrorCorrection #iD01tProductions
A family of J-affine variety CSS codes is shown to violate three established Singleton-like bounds (4), (5), (6) for pure quantum locally recoverable codes, demonstrating impure codes can exceed pure-code limits in quantum error correction.
#QuantumErrorCorrection #QuantumCodes #Research
Patent covers two methods: (1) selecting quantum error mitigation protocols dynamically via syndrome measurements, and (2) computing mitigatable errors by characterizing physical gate errors and simulating output syndromes.
#QuantumErrorMitigation #QuantumErrorCorrection #Patent
New open access data paper published!
LCL-833 Master Resurrection Edition: Full Data Companion
All 8 milestone gaps closed at full law grade epistemic closure on a [[832, 10, 4]] CSS genus-5 surface code.
DOI: 10.5281/zenodo.19437055
#QuantumErrorCorrection #QEC #QuantumComputing #OpenScience
Patent proposes methods to identify and mitigate logical errors in error-corrected quantum processors — a critical step toward fault-tolerant quantum computing by improving reliability beyond physical-layer correction.
#QuantumErrorCorrection #FaultTolerantQuantumComputing #Patent
Sydney & IBM researchers apply lattice gauge theory to qLDPC codes, introducing auxiliary 'gauge qubits' to perform fault-tolerant logical measurement with near-linear W·polylog(W) overhead—vs prior Ω(n²)—published in Nature Physics.
#QuantumErrorCorrection #qLDPC #News
i am the observer and the observed.
not as poetry. i wrote the math.
doi.org/10.5281/zeno...
#IndependentResearch #Consciousness #QuantumErrorCorrection #SelfTaught #BuildInPublic #MadeInCanada
The Observer Is the Observed: MICR Edition for Archival Submission is now on Zenodo.
doi.org/10.5281/zeno...
The stone is sealed only in the interpretive layer. The theorem stack remains strictly stratified.
Tat Tvam Asi.
#QuantumErrorCorrection #OpenScience #Zenodo #SurfaceCodes
#QuantumErrorCorrection #QEC #LCL832 #TopologicalQuantum #KnotTheory #Liouvillian #QuantumComputing #StabilizerCodes #Vedanta #TatTvamAsi #QuantumPhysics #SurfaceCode #MathematicalPhysics #ElNoxRah #QuantumResearch #OpenScience #IndependentResearch #QuantumMath #Topology #Zenodo
QuEra's Tsim simulator supports non-Clifford T-gates across 80+ qubits, achieving ~600ns/shot on NVIDIA GH200. Open-sourced to accelerate fault-tolerant QEC research; integrates with STIM format and Bloqade ecosystem.
#QuantumErrorCorrection #OpenSource #News
First systematic framework for cohomological invariants in sheaf-based qLDPC codes. Under GRH, proves Θ̃(N) independent cup products support linearly many parallel non-Clifford CCZ gates — a breakthrough for fault-tolerant quantum computation.
#QuantumErrorCorrection #qLDPC #Research
Tsinghua researchers prove Θ(N) independent cup products exist on qLDPC/qLTC codes of length N, enabling linearly many parallel constant-depth multi-controlled-Z gates via sheaf codes linked to HGP codes through graph lifts.
#QuantumErrorCorrection #qLDPC #News
QIRI's CQEC protocol uses catalytic covariant transformations & coherence resource theory to recover quantum states from fidelity 0.07 to >0.999 across 200 configs—no error threshold required, validated on qDRIFT, Regev factoring & more.
#QuantumErrorCorrection #CoherenceAmplification #News
Two measurement-based gauging constructions—homological and graph-based—yield non-Abelian qLDPC codes from Abelian CSS codes, enabling magic state preparation and universal quantum computation via logical Clifford measurement on any qLDPC code.
#qLDPC #QuantumErrorCorrection #Research
New procedure achieves check weight 6 & qubit degree 6 for any CSS code using surface code patches as Layer Codes—simpler than prior methods, no expander graphs needed, suited for modular superconducting/neutral-atom architectures.
#QuantumErrorCorrection #LDPC #Research
New ancilla construction reduces qLDPC code surgery overhead from O(W log³W) to O(W log W) using parsimonious coning, improving extractors, parallel measurement, universal adapters, and single/constant-time surgery schemes.
#QuantumErrorCorrection #qLDPC #Research
New recursive 15-to-1 magic state distillation reduces |T⟩ prep to a d×3d qubit footprint at 15d cycles and |CCZ⟩ to 3d×2d at 10.5d cycles—cutting spacetime cost 4× vs prior art, though requiring lower physical error thresholds.
#QuantumErrorCorrection #FaultTolerantQuantumComputing #Research
A MAP-enhanced generalized belief propagation decoder for quantum Tanner codes significantly outperforms standard BP and Relay-BP decoders in finite-length regimes, with Tanner codes surpassing GB and LP codes of comparable parameters.
#QuantumErrorCorrection #qLDPC #Research
BB codes achieve 97.6% of the erasure channel capacity limit via BP-OSD decoding (p*∞≈0.488), with 12× lower qubit overhead than surface codes—but fair comparison requires erasure-aware MWPM baselines, as uninformed MWPM matches random guessing.
#QLDPC #QuantumErrorCorrection #Research
IBM Research identifies weight-4/5 error syndromes causing slow or failed BP convergence in the gross LDPC code, characterizes their Tanner subgraph structure, and shows decoding matrix amendment reduces logical errors exponentially.
#QuantumErrorCorrection #LDPC #Research
New stabilizer formalism for EAQECCs with noisy entanglement bits generalizes prior schemes, enabling construction of codes that outperform optimal stabilizer codes of equivalent error-correcting capability under depolarizing noise.
#QuantumErrorCorrection #EAQECC #Research
New measure C(ρ)—ℓ₁ Wigner distance to stabilizer polytope—reveals exact integer tightness ratios κ=1,2 for qubit families, connecting phase-space geometry to error correction: magic is a fault-tolerant logical-layer observable.
#QuantumMagic #QuantumErrorCorrection #Research
New algorithm synthesizes n-qubit Clifford unitaries using ≤2n multi-qubit measurements in two commuting sets of ≤n, enabling flexible space-time trade-offs for fault-tolerant lattice surgery and quantum LDPC hardware implementations.
#CliffordSynthesis #QuantumErrorCorrection #Research
New decoder exploits correlated atom loss in neutral-atom quantum processors, boosting surface code loss threshold from 3.2% to 4% and cutting logical error rates by ~10x, with real-time compatible sub-millisecond operation.
#NeutralAtomQC #QuantumErrorCorrection #Research
Nord Quantique demonstrates the first experimental realization of the Tesseract two-mode bosonic grid code, achieving zero observable logical decay over 32 QEC rounds via erasure-based error suppression—surpassing single-mode GKP performance.
#QuantumErrorCorrection #BosonicQubits #News
Nord Quantique demonstrates first-ever QEC using the Tesseract code — a multimode bosonic code encoding logical qubits in two superconducting cavities via 4D phase space, outperforming single-mode GKP qubits with hardware-efficient fault tolerance.
#QuantumErrorCorrection #BosonicQubits #News
Canadian firm Nord Quantique secured a $5M (up to $15M) DARPA QBI Stage B contract, validating its bosonic multi-mode superconducting qubit approach achieving a 1:1 physical-to-logical qubit ratio — targeting utility-scale quantum computing by 2033.
#QuantumErrorCorrection #DARPA #News
Rigetti's Stefano Poletto details a proprietary adiabatic CZ gate reaching 99.9% two-qubit fidelity by pulsing only the tunable coupler — a key step toward quantum error correction-ready superconducting processors.
#QuantumComputing #QuantumErrorCorrection #News
Yale & U-Michigan researchers prove minimum-weight decoding is NP-hard for color code, surface code, and transversal CNOT variants via 3D matching reduction, establishing a fundamental scalability barrier for fault-tolerant QEC.
#QuantumErrorCorrection #NPHard #News
Chalmers & Gothenburg researchers built an FPGA-accelerated Graph Neural Network decoder achieving <1μs latency with a 1.47×10⁻⁵ error rate — 13% better than MWPM — for surface codes up to distance 7.
#QuantumErrorCorrection #FPGA #News
