公开(公告)号：US20250148344A1

公开(公告)日：2025-05-08

申请号：US18407498

申请日：2024-01-09

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Jeongseok HA ,  Jaemin KIM ,  Hyunwoo JUNG

IPC: G06N10/70 ,  H03M13/11

Abstract: The present disclosure relates to an apparatus and method for decoding a quantum low-density parity-check code. An aspect of the present disclosure is to provide a technique of performing iterative decoding when error correction fails, in a process of decoding a quantum low-density parity-check code based on a belief propagation algorithm.

公开(公告)号：US20250021858A1

公开(公告)日：2025-01-16

申请号：US18525914

申请日：2023-12-01

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Jeongseok HA ,  Hyunwoo JUNG

IPC: G06N10/70

Abstract: The present disclosure relates to a method for determining a recovery operator using a topological structure of a rotated surface code. a reliability of n qubits (n being an integer of 1 or more) included in the rotated surface code is determined by using a belief propagation decoding algorithm. at least one subset for the n qubits is set based on the reliability of the n qubits. the recovery operator is determined by using the at least one subset.