%0 Conference Paper
%A Old, Josias
%A Rispler, Manuel
%T Generalized Belief Propagation Algorithms for Decoding of Surface Codes
%M FZJ-2023-05674
%D 2023
%X A class of codes which recently received a lot of attention because of their good properties are Quantum Low-Density Parity Check (LDPC) codes. We investigate a Belief Propagation (BP) decoder for such codes and show numerically its success and limitations. We introduce a new, generalized decoder building on region-based free energy approximations. Apart from the original implementation of BP it shows the emergence of a threshold under bit-flip and depolarizing noise for the surface code.
%B Quantum Computing Theory in Practice
%C 17 Apr 2023 - 19 Apr 2023, Cambridge (UK)
Y2 17 Apr 2023 - 19 Apr 2023
M2 Cambridge, UK
%F PUB:(DE-HGF)24
%9 Poster
%R 10.34734/FZJ-2023-05674
%U https://juser.fz-juelich.de/record/1019843