Soft syndrome iterative decoding of quantum LDPC codes and hardware architectures Nithin Raveendran, Javier Valls, Asit Kumar Pradhan, Narayanan Rengaswamy, Francisco Garcia-Herrero and Bane Vasić EPJ Quantum Technol., 10 1 (2023) 45 Published online: 19 October 2023 DOI: 10.1140/epjqt/s40507-023-00201-1