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A family of Hermitian dual-containing constacyclic codes and related quantum codes
Quantum Information Processing ( IF 2.2 ) Pub Date : 2021-05-22 , DOI: 10.1007/s11128-021-03102-3
Xubo Zhao , Xiaoping Li , Qiang Wang , Tongjiang Yan

In this paper, we study a family of constacyclic BCH codes over \({\mathbb {F}}_{q^2}\) of length \(n=\frac{q^{2m}-1}{q+1}\), where q is a prime power, and \(m\ge 2\) an even integer. The maximum designed distance of narrow-sense Hermitian dual-containing constacyclic BCH codes over \({\mathbb {F}}_{q^2}\) of length n is determined. Furthermore, the exact dimensions of these constacyclic BCH codes with given designed distance are obtained. As a consequence, we are able to derive the parameters of quantum codes as a function of their designed parameters of the associated constacyclic BCH codes. This improves a recent result by Yuan et al. (Des Codes Cryptogr 85(1): 179–190, 2017) for codes with the same lengths except three trivial cases (\(q=2, 3, 4\)). Moreover, some of our newly constructed quantum codes have better parameters compared with those constructed recently (Song et al. Quantum Inf Process 17(10): 1–24, 2018, Aly et al. IEEE Trans Inf Theory 53(3): 1183–1188, 2007, Li et al. Quantum Inf Process 18(5): 127, 2019, Wang et al. Quantum Inf Process 18(10): 1–40, 2019).



中文翻译:

含Hermitian对偶的常数码和相关量子码的族

在本文中,我们研究在家庭的常循环BCH码\({\ mathbb {F}} _ {Q ^ 2} \)长度的\(N = \压裂{Q ^ {2米} -1} {Q + 1} \),其中q是素数,\(m \ ge 2 \)是偶数。长度为n的\({\ mathbb {F}} _ {q ^ 2} \)上的狭义Hermitian对偶含并发BCH码的最大设计距离决心,决意,决定。此外,获得了具有给定设计距离的这些并发BCH码的精确尺寸。结果,我们能够根据相关的固定BCH码的设计参数来导出量子码的参数。这改善了Yuan等人的最新结果。(Des Codes Cryptogr 85(1):179–190,2017年),除了三个琐碎的情况(\(q = 2,3,4 \))以外,具有相同长度的代码。此外,与最近构建的量子代码相比,我们一些新构建的量子代码具有更好的参数(Song等人,Quantum Inf Process 17(10):1-24,2018,Aly等人,IEEE Trans Inf Theory 53(3):1183) – 1188年,2007年,Li等人,Quantum Inf Process 18(5):127,2019年,Wang等人,Quantum Inf Process 18(10):1–40,2019年)。

更新日期:2021-05-22
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