"Revolutionary Codes Boost Quantum Computing Efficiency by 10-Fold"
Originally Published 2 years ago — by Quanta Magazine
Researchers have developed new LDPC codes that could make quantum computing 10 times more efficient by protecting reliable qubits with fewer raw qubits. LDPC codes, which feature nonlocal connections between qubits, have shown promising results in simulations, requiring significantly fewer input qubits compared to the surface code. However, implementing LDPC codes in real quantum devices poses challenges, particularly in creating nonlocal connections between qubits. Despite the obstacles, these advancements in error correction could bring substantial fault tolerance to devices with the number of qubits available today.