Figure 1.
Cartoon describes how perovskite nanocube artificial solids can
be harnessed to simulate cooperative phases in the vicinity of the
Mott insulator-to-metal transition. (a) Cooperative effects, such
as super-radiance, emerge from long-range interactions when coupled via an external light field.
(b) Local interactions
govern the photoinduced transition from
an exciton gas and an electron–hole liquid in a semiconductor,
realizing a Mott transition that can be fully mapped onto a repulsive
Hubbard model in a magnetic field h.