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Yoked surface code[1]

Description

Member of a family of \([[n,k,d]]\) qubit CSS codes resulting from a concatenation of a QMDPC code with a rotated surface code. Concatenation does not impose additional connectivity constraints and can triple the number of logical qubits per physical qubit when compared to the original surface code. Concatenation with 1D (2D) QMDPC yields codes with twice (four times) the distance. Using the concatenation convention of the Zoo, the stabilizer generators of the inner QMDPC code are referred to as yokes in this context; the cited paper [1] uses the opposite inner/outer terminology.

Decoding

Soft information from the outer surface codes can be utilized via a message passing algorithm [2].Yokes can be measured using lattice surgery [1].

Primary Hierarchy

Parents
Using the concatenation convention of the Zoo, a yoked surface code is a concatenation of a QMDPC code (inner code) with a rotated surface code (outer code). The cited paper [1] uses the opposite inner/outer terminology.
Yoked surface code
Children
Yoked surface codes are concatenations of QMDPC codes with rotated surface codes.
Yoked surface codes are concatenations of QMDPC codes with rotated surface codes.

References

[1]
C. Gidney, M. Newman, P. Brooks, and C. Jones, “Yoked surface codes”, (2023) arXiv:2312.04522
[2]
D. Poulin, “Optimal and efficient decoding of concatenated quantum block codes”, Physical Review A 74, (2006) arXiv:quant-ph/0606126 DOI
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Zoo Code ID: yoked_surface

Cite as:
“Yoked surface code”, The Error Correction Zoo (V. V. Albert & P. Faist, eds.), 2023. https://errorcorrectionzoo.org/c/yoked_surface
BibTeX:
@incollection{eczoo_yoked_surface, title={Yoked surface code}, booktitle={The Error Correction Zoo}, year={2023}, editor={Albert, Victor V. and Faist, Philippe}, url={https://errorcorrectionzoo.org/c/yoked_surface} }
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Permanent link:
https://errorcorrectionzoo.org/c/yoked_surface

Cite as:

“Yoked surface code”, The Error Correction Zoo (V. V. Albert & P. Faist, eds.), 2023. https://errorcorrectionzoo.org/c/yoked_surface

Github: https://github.com/errorcorrectionzoo/eczoo_data/edit/main/codes/quantum/qubits/stabilizer/qldpc/concatenated/yoked_surface.yml.