Experiment Closes Loopholes to Provide New Evidence of Quantum Interactions

Although quantum phenomena are being explored for applications in computing, encryption, and sensing, the physics behind quantum phenomena is not yet fully understood. New work by a research team at the University of Science and Technology of China (USTC), to be presented at the Frontiers in Optics + Laser Science conference in September, could help improve techniques for probing quantum mechanics.

In the new study, the researchers demonstrate ways to close loopholes in experiments conducted to test Bell’s inequality, an approach to testing quantum mechanics devised in the 1960s by physicist John Bell. The USTC study contributes evidence that quantum mechanics governs the interactions between two photons.