Author(s): René Reimann, Wolfgang Alt, Tobias Kampschulte, Tobias Macha, Lothar Ratschbacher, Natalie Thau, Seokchan Yoon, and Dieter Meschede
Two groups have independently isolated two atoms in a single cavity and measured that the collective light output is not simply the sum of single emitters.
[Phys. Rev. Lett. 114, 023601] Published Wed Jan 14, 2015