Mimicking dark matter with non-linear optics: Humberto Michinel and Angel Paredes at the Optics Laboratory of the University of Vigo in Ourense, Spain, discuss optical approaches to studying'hidden'energy

摘要: One of the most important open problems in contemporary physics is the nature of dark matter, which is known to form around one quarter of the total energy budget of the universe.Novel experiments and astronomical observations are expected to shed new light on this question during the coming years. They should be able to provide evidence to confront observations with the numerous theoretical hypotheses that have been put forward concerning the dynamics, and the ultimate constituents, of dark matter.