Results 21 to 30 of about 374,444 (257)

Gottesman-Kitaev-Preskill codes: A lattice perspective [PDF]

open access: yesQuantum, 2022
We examine general Gottesman-Kitaev-Preskill (GKP) codes for continuous-variable quantum error correction, including concatenated GKP codes, through the lens of lattice theory, in order to better understand the structure of this class of stabilizer codes.
Jonathan Conrad   +2 more
doaj   +1 more source

Classification of quaternary Hermitian self-dual codes of length 20 [PDF]

open access: yes, 2010
A classification of quaternary Hermitian self-dual codes of length 20 is given. Using this classification, a classification of extremal quaternary Hermitian self-dual codes of length 22 is also given.Comment: 9 pages.
Harada, Masaaki, Munemasa, Akihiro
core   +1 more source

SHADOW OPTIMAL SELF-DUAL CODES

open access: yesKyushu Journal of Mathematics, 1999
This paper considers binary linear self-dual codes. An optimal self-dual code has the highest minimum weight for the given length. Shadow codes were previously introduced by \textit{J. H. Conway} and \textit{N. J. A. Sloane} [IEEE Trans. Inf. Theory 36, 1319-1333 (1990; Zbl 0713.94016)].
Dougherty, Steven T., Harada, Masaaki
openaire   +2 more sources

Construction of isodual codes from polycirculant matrices

open access: yes, 2020
Double polycirculant codes are introduced here as a generalization of double circulant codes. When the matrix of the polyshift is a companion matrix of a trinomial, we show that such a code is isodual, hence formally self-dual.
Shi, Minjia, Sole, Patrick, Xu, Li
core   +3 more sources

Transitive and self-dual codes attaining the Tsfasman-Vladut-Zink bound [PDF]

open access: yes, 2005
A major problem in coding theory is the question of whether the class of cyclic codes is asymptotically good. In this correspondence-as a generalization of cyclic codes-the notion of transitive codes is introduced (see Definition 1.4 in Section I), and ...
Stichtenoth, Henning
core   +2 more sources

Extended binary Golay codes by a group algebra of one group

open access: yesНауковий вісник Ужгородського університету. Серія: Математика і інформатика, 2020
Extended binary Golay codes are examples of extreme binary self-dual codes of Type II (linear binary self-dual codes with Hamming distance between arbitrary codewords which are multiples of 4 that has the highest possible minimum Hamming distance among ...
М. Ю. Бортош   +1 more
doaj   +1 more source

Narain CFTs and error-correcting codes on finite fields

open access: yesJournal of High Energy Physics, 2022
We construct Narain CFTs from self-dual codes on the finite field F p through even self-dual lattices for any prime p > 2. Using this correspondence, we can relate the spectral gap and the partition function of the CFT to the error correction capability ...
Shinichiro Yahagi
doaj   +1 more source

Mass Formula for Self-Orthogonal and Self-Dual Codes over Non-Unital Rings of Order Four

open access: yesMathematics, 2023
We study the structure of self-orthogonal and self-dual codes over two non-unital rings of order four, namely, the commutative ring I=a,b|2a=2b=0,a2=b,ab=0 and the noncommutative ring E=a,b|2a=2b=0,a2=a,b2=b,ab=a,ba=b.
Adel Alahmadi   +4 more
doaj   +1 more source

On self-dual double circulant codes [PDF]

open access: yesDesigns, Codes and Cryptography, 2017
Self-dual double circulant codes of odd dimension are shown to be dihedral in even characteristic and consta-dihedral in odd characteristic. Exact counting formulae are derived for them and used to show they contain families of codes with relative distance satisfying a modified Gilbert-Varshamov bound.
Alahmadi, Adel   +2 more
openaire   +5 more sources

Additive Self-Dual Codes over GF(4) with Minimal Shadow

open access: yesInformation, 2018
We define additive self-dual codes over G F ( 4 ) with minimal shadow, and we prove ...
Sunghyu Han
doaj   +1 more source

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