FIG 5 - available via license: Creative Commons Attribution 4.0 International
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The logical error probability is plotted as a function of the physical error probability p with coherent-noise parameters c = 0, 0.25, 0.5, 0.75, 1.0. The dotted lines correspond to the results of the fitting.
Source publication
The demonstration of quantum error correction (QEC) is one of the most important milestones in the realization of fully-fledged quantum computers. Toward this, QEC experiments using the surface codes have recently been actively conducted. However, it has not yet been realized to protect logical quantum information beyond the physical coherence time...
Context in source publication
Context 1
... us see whether or not a successful QEC is reachable if the code distance is increased to 5 and consider what elements should be improved if it is not the case. Since p 2Q is 1.5 %, 1.035 %, which is outside the region where p L = Ap d+1 2 holds in Figure 5, QEC is expected to fail even if the code distance is increased to 5. The ratios of the two-qubit gate and coherence time are T g,2 /T 1 = 0.003 and = 0.001 for Krinners' and Zhaos' groups, respectively. This is sufficiently small from our analysis. ...
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