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辅助无效条件下LOQC C-符号门的比较及功能改进

Comparison of LOQC C-sign gates with ancilla inefficiency and an improvement to functionality under these conditions

A. P. Lund, T. B. Bell, T. C. Ralph

摘要:

我们比较了三个建议的非确定性的C-符号门实现使用线性光学和有条件的测量与非理想的辅助模式的生产和检测。简化的KLM门[Ralph等人,Phys.Rev.A { \bf 65},012314(2001)]在这些条件下似乎是最有弹性的。我们还发现,该门的操作可以通过调整分束器的比例,以补偿在一定程度上的不完美的辅助的影响,以改善。

英文摘要:

We compare three proposals for non-deterministic C-sign gates implemented using linear optics and conditional measurements with non-ideal ancilla mode production and detection. The simplified KLM gate [Ralph et al, Phys.Rev.A {\bf 65}, 012314 (2001)] appears to be the most resilient under these conditions. We also find that the operation of this gate can be improved by adjusting the beamsplitter ratios to compensate to some extent for the effects of the imperfect ancilla.

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。

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