Image (IMAGE) University of Tsukuba Caption Researchers led by the University of Tsukuba developed a computational approach for simulating interactions between matter and light at the atomic scale. The team tested their method by modeling light–matter interactions in a thin film of amorphous silicon dioxide, composed of more than 10,000 atoms, using the world’s fastest supercomputer, Fugaku. The proposed approach is highly efficient and could be used to study a wide range of phenomena in nanoscale optics and photonics. Credit University of Tsukuba Usage Restrictions Unauthorized use is prohibited. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.