English

Unifying error-correcting code/Narain CFT correspondences via lattices over integers of cyclotomic fields

High Energy Physics - Theory 2025-01-08 v2 Mathematical Physics math.MP Quantum Physics

Abstract

We identify Narain conformal field theories (CFTs) that correspond to code lattices for quantum error-correcting codes (QECC) over integers of cyclotomic fields Q(ζp)Q(\zeta_p) (ζp=e2πip)(\zeta_p=e^{\frac{2\pi i}p}) for general prime p3p\geq 3. This code-lattice construction is a generalization of more familiar ones such as Construction AC{}_C 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 ZqZ_q with non-prime qq. Corresponding Narain CFTs are found for codes embedded into quotient rings of root and weight lattices of ADEADE series, except E8E_8 and DkD_k with kk even. In a sense, this provides a unified description of the relationship between various QECCs over FpF_p (or ZqZ_q) and Narain CFTs. A further extension on constructing the E8E_8 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