Abstract
The field of quantum gases, where the de Broglie wavelength of the constituend particles is of the same order as the average particle distance, has shown spectacular effects such as superconductivity and superfluidity and has attracted a lot of interest in theoretical and experimental studies over the past two decades. Where the atomic Bose-Einstein condensate (BEC) is the most prominent example, other systems have developed over the years, such as strongly coupled exciton polariton fluids in semiconductor cavities. The strong nonlinearity in these systems mediates an effective photon-photon interaction that lead to a collective behaviour, where the dynamics can be described by a set of hydrodynamical equations and thus resemble a fluid of light. The same holds to be true for weakly coupled systems in a propagating geometry.
© 2015 IEEE
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