Polariton condensates put in motion.
We present several examples of the interesting phenomenology shown by a moving polariton condensate in semiconductor microcavities. The superfluid behavior is probed by colliding the polariton condensate against physical obstacles in the form of natural defects of the sample, demonstrating a clear suppression of scattering when the speed of the flow lies below the critical velocity. At higher velocities Cerenkov-like shock waves around the defect and disruption of the condensate are also observed.
Sanvitto
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Departamento de Física de Materiales, Universidad Autónoma de Madrid, Madrid, Spain. daniele.sanvitto@uam.es
Amo
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Laussy
F P
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Lemaître
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Bloch
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J
Tejedor
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C
Viña
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