The pinnacle of the world's science and technology The "light clock" of Chinese timekeeping has set a new world record!
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A Chinese research team has developed an ultra-accurate optical clock that deviates by only 1 second every 7 billion years, setting a new world record!
A team of researchers at the University of Science and Technology of China has succeeded in developing an optical clock with stability and uncertainty better than 5 times 10 to the minus 18th power, making China the second country after the United States to achieve such accurate timekeeping. The accuracy of this clock has surpassed that of the most accurate strontium clock in the world, and its operation is also more stable. This achievement not only lays an important technical foundation for the establishment of a global optical clock network, but also opens up a new path for testing basic physical theories, detecting gravitational waves, and searching for dark matter. In the future, optical clocks also have great potential to significantly improve the accuracy of GNSS, help build highly secure communication networks based on quantum key distribution, improve the synchronization and efficiency of power grids, and even play a vital role in defense and security.
This study is truly astounding! Let's applaud this major breakthrough for the Chinese scientific research team and look forward to more wonderful performances from them in the future!