Julien Chabe, Louis Bellando, Tom Bienaime, Romain Bachelard, Nicola Piovella, Robin Kaiser
We report on an interference effect in multiple scattering by resonant scatterers resulting in enhanced forward scattering, violating Ohm's law for photons. The underlying mechanism of this wave effect is superradiance, which we have investigated using cold atoms as a toy model. We present numerical and experimental evidences for this superradiant forward scattering, which is robust against disorder and configuration averaging.
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http://arxiv.org/abs/1211.1587
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