A team of researchers led by PAN Jianwei, ZHANG Qiang, and BAO Xiaohui from the University of Science and Technology of China of the Chinese Academy of Sciences, along with other colleagues, has, for the first time, provided a critical building block for scalable quantum repeaters, enabling the team to subsequently achieve device-independent quantum key distribution (DI-QKD) over 100 km.

Researchers from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences and their collaborators developed the first intercity nuclear-spin-based quantum sensor network, thereby experimentally exceeding astrophysical observation constraints on dark matter associated with axion topological defects.

Marking a pivotal year of discovery, CAS expanded the frontiers of human knowledge in 2025, delivering transformative advancements that redefine the limits of science and technology.

Scientists from the Institute of Physics of the Chinese Academy of Sciences, along with their collaborators, have conducted a random multipolar driving experiment on a large, two-dimensional superconducting quantum processor, Chuang-tzu 2.0. During the experiment, they observed a long-lived prethermal regime where the system temporarily avoided full thermalization.

While paleontologists have uncovered dozens of such Cambrian soft-bodied fossil sites—including China's early Cambrian Chengjiang biota in Yunnan and Canada's middle Cambrian Burgess Shale biota, the most famous examples of their kind—no equivalent top-tier soft-bodied fossil deposit had ever been found from the critical post-Sinsk Event time interval. That changed over the past five years, however, with the discovery of the Huayuan biota—a world-class soft-bodied fossil deposit dating to shortly after the Sinsk Event.

On March 2, 2022, the Chinese Academy of Sciences released its strategic action plan to support scientific and technological efforts toward China's carbon peak and carbon neutrality goals.