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International Journal of Quantum Information

New quantum codes from Hermitian dual-containing codes

Xiusheng Liu, Long Yu, Hualu Liu

Published Feb 1, 2019• 3 citations
Publisher

Abstract

Hermitian dual-containing codes play an important role in the constructing quantum codes. In this paper, we present a new criterion of Hermitian dual-containing code based on the rank of generator matrix for a linear code. Then, using the criterion, we construct a class of new quantum maximum-distance-separable (MDS) codes and some new quantum codes.

DOI
10.1142/s0219749919500060

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Hermitian dual-containing codes play an important role in the constructing quantum codes. In this paper, we present a new criterion of Hermitian dual-containing code based on the rank of generator matrix for a linear code. Then, using the criterion, we construct a class of new quantum maximum-distance-separable (MDS) codes and some new quantum codes.
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Quantum maximum-distance-separable (MDS) codes form an important class of quantum codes. To get q-ary quantum MDS codes, one of the effective ways is to find linear MDS codes C over Fq2satisfying C⊥H⊆ C, where C⊥Hdenotes the Hermitian dual code of C. For a linear code C of length n over Fq2, we say that C is a dual-containing code if C⊥H⊆ C and C≠ Fq2n. Several classes of new quantum MDS codes with relatively large minimum distance have been produced through dual-containing constacyclic MDS codes. These works motivate us to make a careful study on the existence conditions for dual-containing constacyclic codes. We obtain necessary and sufficient conditions for the existence of dual-containing constacyclic codes. Four classes of dual-containing constacyclic MDS codes are constructed and their parameters are computed. Consequently, the quantum MDS codes are derived from these parameters. The quantum MDS codes exhibited here have minimum distance bigger than the ones available in the literature.
Quantum error correction (QEC) is beneficial for ensuring reliable quantum computation and communication by addressing the susceptibility of quantum states to errors from decoherence and noise. This study explores the use of Quantum Matrix Product Codes (MPCs) with an emphasis on monomial matrices and Hermitian duals to achieve efficient and robust error correction. We provide a detailed mathematical formulation of MPCs utilizing monomial matrices, emphasizing the importance of Hermitian duals in maintaining code integrity and ensuring effective error correction. The paper proposes a new criterion for utilizing the rank of the generator matrix associated with linear codes established from Hermitian dual-containing (HDC) of the MPCs. Then, using this criterion, a new set of quantum maximum-distance-separable (MDS) codes has been constructed with better code parameters and error-correction potential. For comparison purpose, different codes have been observed alongside with the obtained codes to ascertain the uniqueness and error correction capabilities.
Abstract The construction of quantum Maximum Distance Separable (MDS) error-correcting codes is of great significance in practical applications, as it plays a vital role in enhancing the reliability and efficiency of quantum communication and quantum computing. As a result, it remains an active research topic in the field of quantum information science. In this paper, based on generalized Reed-Solomon (GRS) codes and Hermitian construction, we construct two new classes of quantum MDS codes. Our constructed quantum MDS codes are novel in the sense that their parameters differ from all previously known codes. Furthermore, most of our codes exhibit significantly larger minimum distance compared to the existing ones of the same length.
Quantum maximum-distance-separable (MDS) codes play an important role in the quantum codes. The previous quantum MDS codes had been constructed according to [Formula: see text] is odd or even. However, such classification omits to consider some special categories of quantum MDS codes. Because of this, we will discuss the other classifications of [Formula: see text]. In this paper, we construct some new [Formula: see text]-ary quantum MDS codes from generalized Reed–Solomon codes by using Hermitian construction, and prove that these quantum MDS codes have minimum distance greater than [Formula: see text], where [Formula: see text].