Bounds on the minimum distance of additive quantum codes
Bounds on [[63,5]]2
lower bound: | 14 |
upper bound: | 20 |
Construction
Construction of a [[63,5,14]] quantum code:
[1]: [[63, 6, 14]] quantum code over GF(2^2)
cyclic code of length 63 with generating polynomial w^2*x^62 + x^61 + x^60 + w*x^59 + w^2*x^58 + w^2*x^57 + x^56 + w*x^55 + w*x^54 + w*x^53 + w^2*x^52 + w^2*x^51 + w^2*x^50 + w*x^49 + w^2*x^48 + w*x^47 + x^46 + x^45 + w*x^44 + x^43 + x^42 + w*x^41 + w^2*x^39 + w*x^37 + x^36 + x^35 + w^2*x^34 + x^33 + w*x^32 + x^31 + w^2*x^30 + x^28 + 1
[2]: [[63, 5, 14]] quantum code over GF(2^2)
Subcode of [1]
stabilizer matrix:
[1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1|1 0 1 1 0 0 1 1 0 1 0 1 0 0 0 1 1 1 0 1 0 1 0 1 0 0 0 1 0 0 0 1 0 1 0 0 1 0 1 1 1 0 1 0 0 0 0 0 1 1 1 0 0 1 0 0 1 0 1 1 0 1 1]
[0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1|1 0 1 1 0 0 1 1 0 1 0 1 0 1 1 0 1 1 0 0 1 1 1 1 0 0 0 0 0 1 0 1 1 0 1 0 0 1 0 1 1 1 0 1 0 1 0 0 1 1 1 0 0 1 0 0 1 0 1 1 0 1 1]
[0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 0 1 1 0 0 0 0 0 1 1 0 0 0 1 0 1 1 0 1 0 0 0 1 0 1 1 0 0 0 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 0 1 1 0 0 0 0 0 1 1 0 0 0 1 0 1 1 0 1 0 0 0 1 0 1 1 0 0 0 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 0 1 1 0 0 0 0 0 1 1 0 0 0 1 0 1 1 0 1 0 0 0 1 0 1 1 0 0 0 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0|1 0 1 1 0 0 1 1 0 1 0 1 0 0 0 1 1 1 1 1 1 0 1 0 0 1 1 1 0 0 0 1 1 0 0 0 1 1 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 0 0 1 0 1 1 0 1 1]
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[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 0 1 1 0 0 0 0 0 1 1 0 0 0 1 0 1 1 0 1 0 0 0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1|1 0 1 1 0 0 1 1 0 1 0 1 0 1 0 0 0 0 1 1 1 0 0 1 0 0 0 0 1 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 1 1 1 0 0 1 0 0 1 0 1 1 0 1 1]
last modified: 2008-02-16
Notes
- All codes establishing the lower bounds where constructed using MAGMA.
- Most upper bounds on qubit codes for n≤100 are based on a MAGMA program by Eric Rains.
- For n>100, the upper bounds on qubit codes are weak (and not even monotone in k).
- Some additional information can be found in the book by Nebe, Rains, and Sloane.
- My apologies to all authors that have contributed codes to this table for not giving specific credits.
This page is maintained by
Markus Grassl
(codes@codetables.de).
Last change: 23.10.2014