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arXiv 1107.3502quant-phmath.CO
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同调稳定子码

Homological Stabilizer Codes

Jonas T. Anderson

摘要:

在本文中,我们定义了同调稳定子码,包括代码,如Kitaev的复曲面码和拓扑色码。这些代码完全由它们所在的图来定义,这一特性允许我们利用拓扑图论的性质来确定适合作为同调稳定器代码的图。然后,我们证明了所有的复曲面代码是等价的同调稳定4-valent图的代码。我们证明了拓扑色码和环面码对应于两类不同的图。我们定义的标签集等价的概念,并表明,在一个小的约束条件下,唯一的同调稳定剂代码没有本地逻辑运算符是等价的Kitaev的复曲面代码或拓扑色码。

英文摘要:

In this paper we define homological stabilizer codes which encompass codes such as Kitaev's toric code and the topological color codes. These codes are defined solely by the graphs they reside on. This feature allows us to use properties of topological graph theory to determine the graphs which are suitable as homological stabilizer codes. We then show that all toric codes are equivalent to homological stabilizer codes on 4-valent graphs. We show that the topological color codes and toric codes correspond to two distinct classes of graphs. We define the notion of label set equivalencies and show that under a small set of constraints the only homological stabilizer codes without local logical operators are equivalent to Kitaev's toric code or to the topological color codes.

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