Galois-qudit non-stabilizer code[1]
Description
The projection onto a stabilizer code is proportional to an equal sum over all elements of the stabilizer group \(\mathsf{S}\). Non-stabilizer codes generalize stabilizer codes by modifying the code projection with elements of a subset \(\mathsf{B}\subset\mathsf{S}\) called the Fourier description (see proof of Thm. 2.7 in Ref. [1]). When \(\mathsf{B}\) is a subgroup of \(\mathsf{S}\), then the code reduces to an ordinary stabilizer code.
The following non-stabilizer codes were constructed in Ref. [1]: \(((33, 155, 3))\), \(((15, 8, 3))\), \(((n, \lceil\frac{q^n}{n(q^2-1)}\rceil,2))_q\) and \(((n, 1+n(q-1),2))_q\), where \(n\) is odd. The last code family is a Galois-qudit extension of the non-additive six-qubit CWS code.
Encoding
Decoding
Parent
Children
- \(((5,6,2))\) qubit code — The six-qubit CWS code is a non-stabilizer qubit code [1].
- Galois-qudit stabilizer code — A non-stabilizer code is also a stabilizer code if its Fourier description \(\mathsf{B}\) is a subgroup of some Gottesman subgroup \(\mathsf{S}\). When \(\mathsf{B}\) is just a subset, the code is explicitly not a stabilizer code.
References
- [1]
- V. Arvind, P. P. Kurur, and K. R. Parthasarathy, “Nonstabilizer Quantum Codes from Abelian Subgroups of the Error Group”, (2002) arXiv:quant-ph/0210097
Page edit log
- Victor V. Albert (2022-04-13) — most recent
- Jiaxin Huang (2022-04-08)
Cite as:
“Galois-qudit non-stabilizer code”, The Error Correction Zoo (V. V. Albert & P. Faist, eds.), 2022. https://errorcorrectionzoo.org/c/non_stabilizer