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arXiv · 1410.0774

Coherent forward scattering in 2D disordered systems

S. Ghosh·N. Cherroret·B. Grémaud·C. Miniatura·D. Delande
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Abstract

We present a detailed numerical and theoretical analysis of the recently discovered phenomenon of coherent forward scattering. This effect manifests itself as a macroscopic interference peak in the forward direction of the momentum distribution of a matter wave launched with finite velocity in a random potential. Focusing on the two-dimensional case, we show that coherent forward scattering generally arises due the confinement of the wave in a finite region of space, and explain under which conditions it can be seen as a genuine signature of Anderson localization.

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S. Ghosh, N. Cherroret, B. Grémaud, C. Miniatura, D. Delande. 2014-12-01. Coherent forward scattering in 2D disordered systems. https://doi.org/10.1103/physreva.90.063602

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