Physics – Quantum Physics
Scientific paper
2012-02-13
Physics
Quantum Physics
4 pages, 4 figures, 2 tables, title changed
Scientific paper
We estimate error thresholds for surface code in the presence of loss via an analytical method developed in statistical physics. The error threshold for the surface code is closely related to a special critical point in a finite-dimensional spin glass, which is disordered magnetic material. We compare our estimations to the heuristic numerical results reported in earlier studies. Further application of our method to the depolarizing channel, a natural generalization of the noise model, unveils its wider robustness even with loss of qubits.
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