Abstract
Two families of asymmetric quantum codes of length \(n=q^{2m}-1\) over \(\textbf{F}_{q^{2}}\) are constructed in this paper. By a detailed analysis of properties about \(q^{2}\)-ary cyclotomic cosets modulo n, Hermitian dual-containing conditions for a family of primitive narrow-sense BCH codes are presented. Consequently, a series of asymmetric quantum BCH codes are constructed via the CSS-like construction and pairs of nested BCH codes. The parameters of new asymmetric quantum codes presented here are better than those available in the literatures before, and the real Z-distance are much larger than \(\delta _{max}+1\).
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Acknowledgements
We are indebted to the anonymous reviewers for constructive comments and suggestions on our manuscript, which improve the manuscript significantly. This work is supported by National Natural Science Foundation of China under Grant No. U21A20428, Natural Science Foundation Research Program of Shaanxi under Grant Nos. 2021JM-216, 2021JQ-335, 2022JQ-046 and 2023-JC-QN-0033.
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Ma, Y., Liu, Y., Lu, L. et al. New asymmetric quantum codes over \(\textbf{F}_{q^2}\). Quantum Inf Process 22, 175 (2023). https://doi.org/10.1007/s11128-023-03906-5
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DOI: https://doi.org/10.1007/s11128-023-03906-5