Fault-tolerant thresholds for quantum error correction with the surface code

2013/11/30 by Ashley M. Stephens · 2 citations
Physics and Astronomy · #quant-ph

paper · pdf · doi:10.1103/physreva.89.022321

published as Phys. Rev. A 89, 022321 (2014) · 9 pages, 6 figures

arxiv created 2014/02/15 · arxiv updated 2014/02/18

Abstract

The surface code is a promising candidate for fault-tolerant quantum computation, achieving a high threshold error rate with nearest-neighbor gates in two spatial dimensions. Here, through a series of numerical simulations, we investigate how the precise value of the threshold depends on the noise model, measurement circuits, and decoding algorithm. We observe thresholds between 0.502(1)% and 1.140(1)% per gate, values which are generally lower than previous estimates.

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