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arXiv 1709.09282quant-ph
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通用稳定器代码之间的transmitting切换

Transversal switching between generic stabilizer codes

Cupjin Huang, Michael Newman

摘要:

我们提出了一个随机变量的稳定器重新布线算法(SRA),一种方法,用于构建任何一对稳定器代码之间的横向电路映射。当沿着该电路应用门时,初始代码在到达最终代码之前通过一系列中间代码变形。有了这个随机化的变体,我们表明,总是存在一个路径的变形,保持整个电路的代码距离,而使用最多的线性开销的距离。此外,我们表明,一个随机的路径将几乎总是足够的,并讨论实现一般容错代码切换电路的前景。

英文摘要:

We propose a randomized variant of the stabilizer rewiring algorithm (SRA), a method for constructing a transversal circuit mapping between any pair of stabilizer codes. As gates along this circuit are applied, the initial code is deformed through a series of intermediate codes before reaching the final code. With this randomized variant, we show that there always exists a path of deformations which preserves the code distance throughout the circuit, while using at most linear overhead in the distance. Furthermore, we show that a random path will almost always suffice, and discuss prospects for implementing general fault-tolerant code switching circuits.

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