lower bound: | 8 |
upper bound: | 11 |
Construction of a [[63,31,8]] quantum code: [1]: [[63, 31, 8]] quantum code over GF(2^2) cyclic code of length 63 with generating polynomial w^2*x^60 + w*x^59 + w*x^58 + x^57 + x^56 + w*x^55 + w*x^53 + x^51 + x^49 + w*x^46 + w^2*x^45 + x^43 + w^2*x^42 + w^2*x^39 + x^37 + w^2*x^36 + x^34 + x^33 + w^2*x^32 + x^31 + w^2*x^30 + x^29 + w*x^28 + w^2*x^27 + w^2*x^25 + w*x^24 + x^23 + x^21 + w^2*x^19 + w*x^17 + w*x^15 + w*x^12 stabilizer matrix: [1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 1 0 0 1 1 1 0 1 0 1 1 1 1 0 0 0 1 0 0 0 0 0 0 1 1 0 1 0 1 1 1 1 0 0 0 1 0 1 1 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 1 0 0 1 1 0 1 1 1 1 1 0 1 1 0 0 0 1 1 0 0 0 1 0 0 0 1 1 1 0 1 1] [0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 1 1 1 0 0 1 0 0 0 0 0 0 0 0 1 1 0 0 1 0 1 0 0 1 0 1 1 1 0 1 0 1 0 0 0 0 1 1 0 1 0|1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 0 1 1 1 0 0 0 1 1 0 0 1 1 0 1 1 1 1 1 1 0 0 0 0 0 0 0 1 0 0 1 1 0 1 0 0 0] [0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 1 0 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