Bounds on the minimum distance of additive quantum codes
Bounds on [[25,18]]2
lower bound: | 3 |
upper bound: | 3 |
Construction
Construction of a [[25,18,3]] quantum code:
[1]: [[40, 33, 3]] quantum code over GF(2^2)
Construction from a stored generator matrix
[2]: [[25, 18, 3]] quantum code over GF(2^2)
Shortening of [1] at { 2, 5, 6, 13, 15, 16, 17, 19, 21, 26, 27, 30, 31, 32, 37 }
stabilizer matrix:
[1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 0|0 0 1 1 0 0 1 0 1 1 1 1 1 0 1 0 1 0 0 1 0 1 1 0 1]
[0 0 0 1 1 0 1 1 1 0 0 0 1 1 1 1 0 0 0 1 1 1 0 0 0|1 0 0 0 0 0 1 0 0 0 0 1 1 0 0 1 1 0 0 1 0 0 0 1 1]
[0 1 0 0 1 0 1 0 0 0 0 1 1 0 1 0 0 1 1 0 1 1 1 0 1|0 0 0 1 1 0 1 1 1 0 0 0 1 1 1 1 0 0 0 1 1 1 0 0 0]
[0 0 0 1 1 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0|0 1 1 1 1 0 1 0 0 0 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1]
[0 0 1 1 0 0 1 1 0 1 1 0 1 1 0 0 0 0 0 1 1 0 1 1 0|0 0 1 0 1 0 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 1 1 0]
[0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 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 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1]
last modified: 2005-06-29
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 necessarily 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.
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Markus Grassl
(codes@codetables.de).
Last change: 10.06.2024