1202.2593 (Masayuki Ohzeki)

Analysis on optimal error threshold in surface code with loss of qubits    [PDF]

Masayuki Ohzeki

We estimate optimal error thresholds in surface code in the presence of loss
via an analytical method developed in statistical physics. The optimal error
threshold in the surface code is closely related with a special critical point
in a finite-dimensional spin glass, which is disordered magnetic material. We
compare our estimations with the 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.

View original: http://arxiv.org/abs/1202.2593