Fluc­tu­a­tions in the void

… The researchers hope that in the future they will be able to measure even more exotic cases of vacuum fluctuations using their method. In the presence of strong interactions between photons and matter, which can be achieved, for instance, inside optical cavities, according to theoretical calculations the vacuum should be populated with a multitude of so-called virtual photons. The method developed by Faist and his collaborators should make it possible to test those theoretical predictions. ​

continue reading