3 papers
cs.IT2026
Quantum Bicycle LDPC Codes with High from Divisor-Driven Search
Liangdong Lu, Guanmin Guo, Yang Liu +1
Bicycle (two-block circulant) quantum low-density parity-check (LDPC) codes include some of the best known small quantum codes, yet their design has relied on group-algebra formula…
cs.IT2026
Quantum Codes from -Nearly Self-Orthogonal Linear Codes via Jordan Canonical Form over
Liangdong Lu, Ruipan Yang, Yang Liu +2
We introduce a Jordan-canonical-form framework for constructing -ary quantum stabilizer codes from arbitrary classical linear codes over $\F_{q^2}$. The framework does not requi…
cs.IT2026
Quantum Locally Repairable Codes from Negacyclic and Repeated-Root Cyclic Codes over Small Fields
Ruipan Yang, Qiang Fu, Liangdong Lu
Quantum locally recoverable codes (qLRCs), introduced recently by Golowich and Guruswami, allow any single-qudit erasure to be recovered from a small set of other qudits. Most know…