Abstract
In this paper, we consider group rings and skew group rings and use them to construct binary quantum error-correcting codes(QECCs, for short). We study three classes of groups: direct product of two cyclic groups, dihedral group, direct product of cyclic group and dihedral group. And several special groups. Using these groups we can get construction matrix of the linear codes over \(\mathbb {F}_4\). Then by computer search, we get 12 new binary QECCs with parameters [[40,16,7]], [[42,14,8]], [[48,20,8]], [[50,24,7]], [[54,34,6]], [[55,21,9]], [[60,38,6]], [[60,32,7]], [[70,42,7]], [[72,50,6]], [[75,47,7]], [[75,39,8]]. They both break the best-known lower bound on minimum distance in the Grassl’s code tables.
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Data supporting the results of this study are available upon request from the corresponding author. The availability of this data is limited and the data was used under the license of this study and is therefore not publicly available. However, data may be obtained upon reasonable request by the author and with the permission of the data provider.
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Acknowledgements
We would like to extend our heartfelt thanks to all those who contributed to this paper. This work was supported by the National Natural Science Foundation of China under Grant Nos U21A20428 and 12171134.
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Cong Yu and Shixin Zhu wrote the main manuscript text. All authors reviewed the manuscript.
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Yu, C., Zhu, S. New Binary Quantum Codes from Group Rings and Skew Group Rings. Int J Theor Phys 63, 27 (2024). https://doi.org/10.1007/s10773-023-05545-z
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DOI: https://doi.org/10.1007/s10773-023-05545-z