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Paper 1

Impure codes exceeding the pure bounds for quantum local recovery

Carlos Galindo, Fernando Hernando, Helena Martín-Cruz, Ryutaroh Matsumoto

Year
2026
Journal
arXiv preprint
DOI
arXiv:2604.03569
arXiv
2604.03569

Literature provides several bounds for quantum local recovery, which essentially consider the number of message qudits, the distance, the length, and the locality of the involved codes. We give a family of $J$-affine variety codes that result in impure CSS codes. These quantum codes exceed several of the above mentioned bounds that apply to pure quantum locally recoverable codes. We also discuss a connection between bounds on quantum local recovery and on weight-constrained stabilizer codes.

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Paper 2

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