China has unveiled the Zuchongzhi-3, a 105-qubit superconducting quantum processor said to be 10¹⁵ times faster than the top classical supercomputer. Developed by the University of Science and Technology of China, this positions China as a major player in the quantum computing race against Google’s Willow processor. Zuchongzhi-3 features 105 qubits in a 15×7 array with 182 couplers, achieving high fidelities and a coherence time of 72 microseconds. It recently demonstrated an 83-qubit random circuit sampling experiment showing a quantum advantage over classical computers. The USTC is also investigating quantum error correction, an area of focus for Google and Microsoft, with Microsoft pursuing a different approach using its Majorana 1 processor. Despite these strides, quantum computing is still experimental, facing challenges like error correction and decoherence, limiting immediate practical applications. The global competition in quantum technology is expected to drive progress toward achieving a quantum computing singularity, though predictions on timing vary among experts.
