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arXiv 1005.0879cs.ITmath.IT
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从斜循环码到非对称量子码

From Skew-Cyclic Codes to Asymmetric Quantum Codes

Martianus Frederic Ezerman, San Ling, Patrick Sole, Olfa Yemen

摘要:

我们引入了一个从$\mathbb{F}_4^{n}$到$\mathbb{F}_4^{2n}$的可加线性映射$S$,并展示了它的一些有趣的结构性质.如果$C$是线性$[n,k,d]_4$码,则$S(C)$是加法$(2n,2^{2k},2d)_4$码.如果$C$是加性循环码,则$S(C)$是索引为$2$的加性准循环码。此外,如果$C$是模块$θ$ -循环码,这是一种最近引入的代码类型,将在下面进行解释,那么如果$n$是奇数,则$S(C)$等效于加性循环码,如果$n$是偶数,则等效于索引为$2$的加性准循环码。给定任何$(n,M,d)_4$ -码$C$,码$S(C)$在迹厄米特内积下自正交。由于映射$S$保持了嵌套性,因此可以作为构造加性非对称量子码的工具。

英文摘要:

We introduce an additive but not $\mathbb{F}_4$-linear map $S$ from $\mathbb{F}_4^{n}$ to $\mathbb{F}_4^{2n}$ and exhibit some of its interesting structural properties. If $C$ is a linear $[n,k,d]_4$-code, then $S(C)$ is an additive $(2n,2^{2k},2d)_4$-code. If $C$ is an additive cyclic code then $S(C)$ is an additive quasi-cyclic code of index $2$. Moreover, if $C$ is a module $θ$-cyclic code, a recently introduced type of code which will be explained below, then $S(C)$ is equivalent to an additive cyclic code if $n$ is odd and to an additive quasi-cyclic code of index $2$ if $n$ is even. Given any $(n,M,d)_4$-code $C$, the code $S(C)$ is self-orthogonal under the trace Hermitian inner product. Since the mapping $S$ preserves nestedness, it can be used as a tool in constructing additive asymmetric quantum codes.

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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