Quantum Error Correction Benchmark Crosses 99.9 Percent Fidelity

Researchers have achieved a breakthrough in quantum error correction, surpassing 99.9 percent logical qubit fidelity. By entangling 1,000 physical qubits into fault-tolerant logical qubits, error rates dropped below the critical threshold. Logical gate operations sustained 99.92 percent precision, allowing algorithms to execute millions of sequential gates. Fault-tolerant quantum processors can now simulate molecular structures beyond the reach of classical supercomputers. Crossing the 99.9 percent benchmark shifts quantum computing from experimental physics to commercial engineering.