In the past years we have observed an incredibly rich phenomenology of quantum effects in fluids of polariton condensates, spanning from superfluid flow and persistent currents to the observation of a complex and important dynamics of vortex formation, stability and movement. More recently, thanks to the easy way of controlling and manipulating polariton states, as well as their fast dynamics, we could also observe that polaritons can be used as the perfect test-bed for the study of quantum phenomena which are hard to observe in other systems. [See also The road towards polaritonic devices, Nat. Mater. 15, 1061 (2016)]
In this context, we have been awarded an ERC grant, POLAFLOW, to fabricate new structures and explore new materials for the study of polariton quantum flow dynamics and their use for optical devices, switches, transistors and logical gates.