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arXiv quant-ph/0703182quant-phcs.ITmath.IT
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量子卷积码的构造

Constructions of Quantum Convolutional Codes

Markus Grassl, Martin Roetteler

摘要:

我们解决的问题,构建量子卷积码(QCC)和编码它们。第一个构造是CSS类型的构造,它允许我们找到速率为2/4的QCC。第二构造通过将乘积码构造应用于任意经典卷积码和任意量子分组码来产生量子卷积码。我们表明,由此产生的代码具有高度结构化和高效的编码器。此外,我们表明,由此产生的量子线路有有限的深度,独立于输入流的长度,并表明,这个深度是多项式的程度和帧大小的代码。

英文摘要:

We address the problems of constructing quantum convolutional codes (QCCs) and of encoding them. The first construction is a CSS-type construction which allows us to find QCCs of rate 2/4. The second construction yields a quantum convolutional code by applying a product code construction to an arbitrary classical convolutional code and an arbitrary quantum block code. We show that the resulting codes have highly structured and efficient encoders. Furthermore, we show that the resulting quantum circuits have finite depth, independent of the lengths of the input stream, and show that this depth is polynomial in the degree and frame size of the code.

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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