# Tag Info

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### Which error channel definitions should I use if I want to compare the performance of a QEC protocol for depolarizing errors vs dephasing errors?

In the literature on biased-noise error correction, people use option 2. See, e.g.: We define $p = p_x +p_y +p_z$ to be the probability of any single-qubit error in https://arxiv.org/abs/1708.08474, ...
• 532
Accepted

### Building a realistic noise model in Qiskit

There might be a better manner to do that, but anyway: You can generate a NoiseModel instance from an actual backend (or from fake V1 backends) by using the ...
• 1,237