See also: Excitonium https://news.ycombinator.com/item?id=15885404 https://news.ycombinator.com/item?id=15885404 Sounds like polaritons and excitons are part

See also: Excitonium https://news.ycombinator.com/item?id=15885404 https://news.ycombinator.com/item?id=15885404 Sounds like polaritons and excitons are part of the same area of study, that a number of groups are looking at right now.