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Pauli Channel Online Estimation Protocol for Quantum Turbo Codes

机译：量子Turbo码的Pauli Channel在线估计协议

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摘要

In this paper, we tackle the channel estimation problem for Pauli channels. Online estimation methods for the depolarizing channel have been proposed in previous literature. However, realistic quantum devices often exhibit an asymmetric behaviour not captured by the symmetric depolarizing model, implying that the estimation method used by Quantum Turbo Codes (QTC) should exploit such asymmetry for the error correcting operations to be successful. Consequently, we propose an online iterative method that aids in successfully estimating each of the individual error probabilities associated with the Pauli channel, ultimately increasing the probability of correct decoding. The benefits this method provides come at the expense of an increase in the decoding complexity.
机译：在本文中，我们解决了Pauli频道的频道估计问题。在先前的文献中已经提出了用于去极化通道的在线估计方法。但是，现实的量子器件通常表现出不对称的去极化模型无法捕获的不对称行为，这意味着量子涡轮代码（QTC）使用的估计方法应利用这种不对称性来使纠错操作成功。因此，我们提出了一种在线迭代方法，该方法可帮助成功估计与Pauli通道相关的每个单独的错误概率，最终增加正确解码的可能性。该方法提供的好处是以增加解码复杂性为代价的。

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