Bounds on the minimum distance of additive quantum codes

Bounds on [[21,1]]2

lower bound:7
upper bound:7

Construction

Construction of a [[21,1,7]] quantum code:
[1]:  [[17, 1, 7]] Quantum code over GF(2^2)
     Construction from a stored generator matrix
[2]:  [[21, 1, 7]] Quantum code over GF(2^2)
     ExtendCode [1] by 4

    stabilizer matrix:

      [1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0|1 1 0 1 1 1 0 1 0 1 0 1 1 1 0 1 1 0 0 0 0]
      [0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0|0 0 1 1 0 0 1 1 1 1 1 1 0 0 1 1 0 0 0 0 0]
      [0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0|1 1 0 0 0 1 0 0 1 0 1 0 0 1 0 0 0 0 0 0 0]
      [0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0|1 0 1 1 1 1 1 1 0 0 0 0 1 1 1 1 1 0 0 0 0]
      [0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0|0 0 0 0 0 0 1 0 1 1 0 1 1 0 1 0 0 0 0 0 0]
      [0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0|1 1 0 1 1 1 0 0 0 0 1 1 0 0 0 0 1 0 0 0 0]
      [0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0|0 0 1 1 0 0 1 1 0 1 0 0 0 1 0 1 1 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|0 1 0 0 0 1 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0]
      [0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0|1 1 1 1 1 1 1 1 0 0 1 0 0 0 1 0 0 0 0 0 0]
      [0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0|1 0 1 0 0 0 1 0 1 1 0 0 1 1 0 0 1 0 0 0 0]
      [0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0|0 0 0 0 1 1 0 0 0 0 1 1 1 0 1 1 1 0 0 0 0]
      [0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 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 1 0 0 0 1 0 0 0 0|1 1 1 1 0 0 0 0 1 1 1 1 1 1 0 1 1 0 0 0 0]
      [0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0|0 0 1 0 0 1 0 1 0 0 1 0 0 0 1 1 0 0 0 0 0]
      [0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0|1 1 0 0 1 1 1 1 1 1 0 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 1 1 0 0 0 0|1 0 1 1 1 0 1 0 1 0 1 1 1 0 1 1 1 0 0 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 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 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 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]

last modified: 2005-06-24

Notes


This page is maintained by Markus Grassl (grassl@ira.uka.de). Last change: 23.10.2014