Research in the news: The search for exceptional rings
Optics research just got a bit more exceptional, and the world may benefit.
Physicists have long known about the existence of isolated “exceptional points” — unique points where two physical states coalesce into one. Exceptional points give rise to counterintuitive phenomena; a more opaque material can seem more transparent, and light may be allowed to propagate in one direction but not the other. (more…)