\([[144,12,12]]\) gross code[1]
Description
A BB QLDPC code which requires less physical and ancilla qubits (for syndrome extraction) than the surface code with the same number of logical qubits and distance. The name stems from the fact that a gross is a dozen dozen.
A different BB QLDPC code with the same parameters was introduced in [2].
Protection
Admits a pseudo-threshold of \(\approx 0.7\%\) for the circuit-based noise model.
Rate
An ancilla-added rate of \(1/24\). In contrast, the distance-13 surface code has ancilla-added rate \(1/338\).
Decoding
The GDG sliding-window decoder [3], with a realization achieving a worst-case decoding latency of 3ms per window.AC decoder is faster than ordinary BP-OSD with no reduction of fidelity [4].
Parent
References
- [1]
- S. Bravyi et al., “High-threshold and low-overhead fault-tolerant quantum memory”, Nature 627, 778 (2024) arXiv:2308.07915 DOI
- [2]
- M. H. Shaw and B. M. Terhal, “Lowering Connectivity Requirements For Bivariate Bicycle Codes Using Morphing Circuits”, (2024) arXiv:2407.16336
- [3]
- A. Gong, S. Cammerer, and J. M. Renes, “Toward Low-latency Iterative Decoding of QLDPC Codes Under Circuit-Level Noise”, (2024) arXiv:2403.18901
- [4]
- S. Wolanski and B. Barber, “Ambiguity Clustering: an accurate and efficient decoder for qLDPC codes”, (2024) arXiv:2406.14527
Page edit log
- Victor V. Albert (2024-03-28) — most recent
Cite as:
“\([[144,12,12]]\) gross code”, The Error Correction Zoo (V. V. Albert & P. Faist, eds.), 2024. https://errorcorrectionzoo.org/c/gross