相关错误的重复与无噪声量子码
Repetition Versus Noiseless Quantum Codes For Correlated Errors
摘要：
我们研究了简单量子纠错码在有限相关强度的相关噪声中的性能。具体来说，我们考虑位翻转（相位翻转）噪声量子存储器通道，并使用重复和无噪声量子代码。我们通过纠缠保真度作为错误概率和记忆度的函数来表征码的性能。最后，通过比较重复量子码和无噪声量子码的纠缠强度，我们找到了一个相关强度阈值，可以选择性能更好的量子码。
英文摘要：
We study the performance of simple quantum error correcting codes with respect to correlated noise errors characterized by a finite correlation strength. Specifically, we consider bit flip (phase flip) noisy quantum memory channels and use repetition and noiseless quantum codes. We characterize the performance of the codes by means of the entanglement fidelity as function of the error probability and degree of memory. Finally, comparing the entanglement fidelities of repetition and noiseless quantum codes, we find a threshold for the correlation strength that allows to select the code with better performance.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
