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@INPROCEEDINGS{Old:1019843,
      author       = {Old, Josias and Rispler, Manuel},
      title        = {{G}eneralized {B}elief {P}ropagation {A}lgorithms for
                      {D}ecoding of {S}urface {C}odes},
      reportid     = {FZJ-2023-05674},
      year         = {2023},
      abstract     = {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.},
      month         = {Apr},
      date          = {2023-04-17},
      organization  = {Quantum Computing Theory in Practice,
                       Cambridge (UK), 17 Apr 2023 - 19 Apr
                       2023},
      subtyp        = {After Call},
      cin          = {PGI-2},
      cid          = {I:(DE-Juel1)PGI-2-20110106},
      pnm          = {5221 - Advanced Solid-State Qubits and Qubit Systems
                      (POF4-522)},
      pid          = {G:(DE-HGF)POF4-5221},
      typ          = {PUB:(DE-HGF)24},
      doi          = {10.34734/FZJ-2023-05674},
      url          = {https://juser.fz-juelich.de/record/1019843},
}