In a historic breakthrough for quantum physics, Chinese scientists have experimentally confirmed Niels Bohr’s principle of complementarity, settling a 98-year-old theoretical dispute with Albert Einstein. The landmark study led by Professor Pan Jianwei at the University of Science and Technology of China (USTC) was published this week in Physical Review Letters.
Revisiting a Historic ‘Clash of Titans’
The research recreates Einstein’s 1927 thought experiment challenging Bohr’s assertion that quantum objects cannot simultaneously exhibit particle-like and wave-like behavior. Using cutting-edge photon detection technology, the team demonstrated that measuring a particle’s path inevitably disrupts its wave interference pattern – validating Bohr’s Copenhagen interpretation.
An ‘Exceptionally Precise’ Experimental Triumph
The USTC team’s ultra-sensitive apparatus detected single-photon momentum transfers with unprecedented accuracy. “Our results leave no room for doubt,” the paper states, confirming that quantum behavior reflects fundamental reality rather than measurement limitations.
This achievement highlights China’s growing leadership in foundational physics research. By resolving one of science’s most enduring debates, Professor Pan’s team has strengthened the theoretical framework underpinning quantum computing and secure communication technologies.
