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Questions tagged [css]

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0 votes
1 answer
17 views

A question on dimensions of the basis vectors for the $[[6,4]]$ code

I am working from page $8$ of this paper. The generator for the coset representatives of $C^{\perp}$ in $C$ for the $[6,5,2]$ classical code is given by $$G_{C/C^{\perp}} = \begin{bmatrix} 1 & 1 &...
am567's user avatar
  • 631
0 votes
0 answers
44 views

Smallest distance 9 self dual code CSS code

Very similar to a previous question at Smallest distance 9 self-dual CSS code? . I'm wondering whats the smallest distance 9 self dual CSS code. There is a 23 qubit distance 7 Golay code and a 47 ...
mathNoob's user avatar
0 votes
1 answer
47 views

Implementing CNOT logical gate for the Steane code

I am looking at the transversal logical gates for the Steane code. I am having trouble trying to implement the $CNOT$ logical gate for this code. I understand that we can transversally implement a ...
am567's user avatar
  • 631
4 votes
2 answers
79 views

Transversal CNOTs on CSS codes with multiple logical qubits

I am interested in the theory of implementing logical gates on quantum error correcting codes. From a practical view, transversal gates are very attractive. I have a question about transversal gates. ...
Vincent's user avatar
  • 171
5 votes
1 answer
183 views

A better name for "weakly self-dual CSS codes"

Does anyone know a better name than "weakly self-dual"/"self-orthogonal" for CSS codes where $H_X=H_Z$, for example the Steane code, and the color codes? Details In the discussion ...
Balint Pato's user avatar
  • 1,063
6 votes
1 answer
179 views

Smallest distance 9 self-dual CSS code?

The level-2 concatenated [[7,1,3]] Steane code, and the 4.8.8 color code are both self-dual [[49,1,9]] codes from the CSS family. Is there a distance 9 self-dual CSS code that has less than 49 qubits?
Balint Pato's user avatar
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