Abstract
Two new qubit stabilizer codes with parameters 〚77,0,19〛2 and 〚90,0,22〛2 are constructed for the first time by employing additive symplectic self-dual F4 codes from multidimensional circulant (MDC) graphs. We completely classify MDC graph codes for lengths 4≤n≤40 and show that many optimal 〚ℓ,0,d〛 qubit codes can be obtained from the MDC construction. Moreover, we prove that adjacency matrices of MDC graphs have nested block circulant structure and determine isomorphism properties of MDC graphs.
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