Phys.org  August 27, 2024 The quantization of gravity is widely believed to result in gravitons – particles of discrete energy that form gravitational waves. But their detection has so far been considered impossible. An international team of researchers (Sweden, Japan, USA – Stevens Institute of Technology) showed that signatures of single graviton exchange could be observed in laboratory experiments. They showed that stimulated and spontaneous single-graviton processes could become relevant for massive quantum acoustic resonators and that stimulated absorption could be resolved through continuous sensing of quantum jumps. They analyzed the feasibility of observing the exchange of single energy quanta […]