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Superconducting Qubits Quantum Error Correction Fault Tolerance

Yoked surface codes

arXiv

Authors: Craig Gidney, Michael Newman, Peter Brooks, Cody Jones

Year

2023

Paper ID

52722

Status

Preprint

Abstract Read

~2 min

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Abstract

We nearly triple the number of logical qubits per physical qubit of surface codes in the teraquop regime by concatenating them into high-density parity check codes. These "yoked surface codes" are arrayed in a rectangular grid, with parity checks (yokes) measured along each row, and optionally along each column, using lattice surgery. Our construction assumes no additional connectivity beyond a nearest neighbor square qubit grid operating at a physical error rate of 10^-3.

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We nearly triple the number of logical qubits per physical qubit of surface codes in the teraquop regime by concatenating them into high-density parity check codes.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2312.04522 [2] arXiv https://arxiv.org/abs/2312.04522 [3] Publisher https://arxiv.org/abs/2312.04522

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