Landau-level spin code
Approximate quantum code that encodes a qudit in the finite-dimensional Hilbert space of a single spin, i.e., a spherical Landau level. Codewords are approximately orthogonal Landau-level spin coherent states whose orientations are spaced maximally far apart along a great circle (equator) of the sphere. The larger the spin, the better the performance.
Protects against equatorial rotational errors acting on the overall spin.
- Spin GKP code — The spin-GKP (Landau-level) code is a GKP-like encoding in (Landau-level) spin coherent states.
“Landau-level spin code”, The Error Correction Zoo (V. V. Albert & P. Faist, eds.), 2023. https://errorcorrectionzoo.org/c/landau_level