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On optimal quantum codes [PDF]

open access: yesInternational Journal of Quantum Information, 2003
We present families of quantum error-correcting codes which are optimal in the sense that the minimum distance is maximal. These maximum distance separable (MDS) codes are defined over q-dimensional quantum systems, where q is an arbitrary prime power ...
MacWilliams F. J.   +3 more
core   +2 more sources

Optimal Quaternary Hermitian LCD Codes

open access: yesEntropy
Linear complementary dual (LCD) codes, which are a class of linear codes introduced by Massey, have been extensively studied in the literature recently.
Liangdong Lu, Ruihu Li, Yuezhen Ren
doaj   +3 more sources

Two Families of Optimal Ternary Cyclic Codes With Two Zeros

open access: yesIEEE Access, 2022
Cyclic codes are an important subclass of linear codes and have wide applications in consumer electronics, data storage systems and communication systems as they have efficient encoding and decoding algorithms.
Jinmei Fan, Binseng Wang
doaj   +1 more source

Enumeration of Optimal Equidistant Codes

open access: yesMathematics, 2022
Problems of search and enumeration of binary and ternary equidistant codes are considered in the paper. We investigate some combinatorial algorithms and develop specialized computer packages to find non-equivalent optimal binary and ternary equidistant ...
Galina Bogdanova, Todor Todorov
doaj   +1 more source

Hamming Distance of Constacyclic Codes of Length ps Over Fpm+uFpm+u²Fpm

open access: yesIEEE Access, 2021
Let $p$ be any prime, $s$ and $m$ be positive integers. In this paper, we completely determine the Hamming distance of all constacyclic codes of length $p^s$ over the finite commutative chain ring $\mathbb {F}_{p^m}+ u\mathbb {F}_{p^m} + u^{2 ...
Hai Q. Dinh   +3 more
doaj   +1 more source

Some Results on Self-Complementary Linear Codes

open access: yesMathematics, 2023
Binary codes have a special place in coding theory since they are one of the most commonly used in practice. There are classes of codes specific only to the binary case. One such class is self-complementary codes.
Maria Pashinska-Gadzheva   +2 more
doaj   +1 more source

A Family of Codes With Locality Containing Optimal Codes

open access: yesIEEE Access, 2022
Locally recoverable codes were introduced by Gopalan et al. in 2012, and in the same year Prakash et al. introduced the concept of codes with locality, which are a type of locally recoverable codes.
Bruno Andrade   +3 more
doaj   +1 more source

Self-Dual Codes, Symmetric Matrices, and Eigenvectors

open access: yesIEEE Access, 2021
We introduce a consistent and efficient method to construct self-dual codes over $GF(q)$ using symmetric matrices and eigenvectors from a self-dual code over $GF(q)$ of smaller length where $q \equiv 1 \pmod 4$ . Using this method, which is called a
Jon-Lark Kim, Whan-Hyuk Choi
doaj   +1 more source

Repeated-Root Constacyclic Codes Over the Chain Ring Fpm[u]/⟨u3

open access: yesIEEE Access, 2020
Let Z = Fpm[u]/(u3) be the finite commutative chain ring, where p is a prime, m is a positive integer and Fpm is the finite field with pm elements. In this paper, we determine all repeated-root constacyclic codes of arbitrary lengths over Z and their ...
Tania Sidana, Anuradha Sharma
doaj   +1 more source

Optimal binary LCD codes [PDF]

open access: yesDesigns, Codes and Cryptography, 2021
19 ...
openaire   +3 more sources

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