China's Hanyuan-2 debuts as 'world's first' dual-core quantum computer — 200-qubit claims incredible power efficiency, but lacks critical performance benchmarks

CAS Cold Atom Technology in China has introduced the Hanyuan-2, touted as the world's first dual-core quantum computer with 200 qubits made from rubidium atoms. The system can operate in parallel or with one core handling error correction while the other computes. Despite its power efficiency, it lacks crucial performance benchmarks like gate fidelity and error rates, unlike Western counterparts like Atom Computing and QuEra. The dual-core design is unique but whether it offers practical advantages over larger single arrays remains uncertain without published benchmarks.