Unifying error-correcting code/Narain CFT correspondences via lattices over integers of cyclotomic fields
Abstract
We identify Narain conformal field theories (CFTs) that correspond to code lattices for quantum error-correcting codes (QECC) over integers of cyclotomic fields for general prime . This code-lattice construction is a generalization of more familiar ones such as Construction A for ternary codes and (after the generalization stated below) Construction A for binary codes, containing them as special cases. This code-lattice construction is redescribed in terms of root and weight lattices of Lie algebras, which allows to construct lattices for codes over rings with non-prime . Corresponding Narain CFTs are found for codes embedded into quotient rings of root and weight lattices of series, except and with even. In a sense, this provides a unified description of the relationship between various QECCs over (or ) and Narain CFTs. A further extension on constructing the lattice from codes over the Mordell-Weil groups of extremal rational elliptic surfaces is also briefly discussed.
Keywords
Cite
@article{arxiv.2410.12488,
title = {Unifying error-correcting code/Narain CFT correspondences via lattices over integers of cyclotomic fields},
author = {Shun'ya Mizoguchi and Takumi Oikawa},
journal= {arXiv preprint arXiv:2410.12488},
year = {2025}
}
Comments
16 pages. Version 2: References are made to some literature. A discussion of codes over the Mordell-Weil groups of extremal rational elliptic surfaces is included