Quantum Error Correction Protocol Shows Improved Efficiency

Researchers have introduced a novel quantum error correction protocol, achieving low infidelity with a reduced number of qubits and CNOT gates. This preliminary, non-peer-reviewed finding demonstrates a postselected infidelity of 210.2p^3+O(p^4) at a depolarizing noise rate of p=10^{-3}, using only 19 qubits. This development is a notable step toward more efficient and fault-tolerant quantum computing.