At the current stage of development, the research and development of large-aperture observation equipment are facing a bottleneck due to the increasing demand from various countries for observing ...

Rotational energy transfer (RET) in molecular collisions plays an important role in a variety of fields, which range from combustion and atmospheric chemistry to astronomy. Nowadays, full quantum ...

When one snooker ball hits another, both spring away from each other in an elastic manner. In the case of two photons, a similar process, the elastic collision, has never been observed. Physicists ...