Collective state transitions of exciton-polaritons loaded into a periodic potential
Collective state transitions of exciton-polaritons loaded into a periodic potential
We study the loading of a nonequilibrium, dissipative system of composite bosons -- exciton polaritons -- into a one dimensional periodic lattice potential. Utilizing momentum resolved photoluminescence spectroscopy, we observe a transition between an incoherent Bose gas and a polariton condensate, which undergoes further transitions between different energy states in …