Hansen Zhong has been driven by a singular goal: pushing the boundaries of computational power.
In the field of quantum computing, he chose the photonic system as the main direction, developing an experimentally feasible theoretical framework for Gaussian boson sampling. Based on this theory, the “Jiuzhang 1.0” prototype was developed, achieving a quantum speedup 10^14 times faster than classic computers through 76-photon Gaussian boson sampling. This milestone marked the first demonstration of the supremacy of photonic quantum computing.
To further advance the system, Hansen developed stimulated parametric down-conversion and real-time optical interferometer control technologies, increasing the number of photons in “Jiuzhang 2.0” to 113, constructing a 10^43 dimensional Hilbert space.
As the scale of quantum systems expands to the thousand-qubit level, the efficiency bottleneck of traditional control methods is becoming increasingly prominent. In response, he deeply integrated AI into quantum technology research.
By designing optimization algorithms with high performance computing, he enabled a small GPU cluster to complete in just 17 seconds a task originally requiring 600 seconds on Google’s quantum chip, achieving the world’s first loophole-free classical counter-supremacy against quantum supremacy, and redefining the computational boundary between classical and quantum paradigms.
He also used AI technology to realize the world's largest neutral atom array with 2000+ qubits and designed an AI-driven quantum error correction decoder that is applicable to all quantum error correction codes and outperforms all existing decoders. These achievements provide a new technical path for fault-tolerant quantum computing.
Currently, Hansen is focused on tackling the challenges of programmability and algorithm adaptation for photonic systems, aiming to achieve Universal photonic AI computing capabilities, laying the foundation for future integrated photonic intelligent chips.
Hansen’s innovations have not only reinforced China’s global leadership in quantum photonics but have also opened new frontiers for the future of computational technology worldwide.
