1108.1282 (Nicolas Cherroret et al.)

Coherent Backscattering of Ultracold Matter Waves: Momentum Space
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Nicolas Cherroret, Tomasz Karpiuk, Cord A. Müller, Benoît Grémaud, Christian Miniatura

Using analytical and numerical methods, it is shown that the momentum
distribution of a matter wave packet launched in a random potential exhibits a
pronounced coherent backscattering (CBS) peak. By analyzing the momentum
distribution, key transport times can be directly measured. The CBS peak can be
used to prove that transport occurs in the phase-coherent regime, and measuring
its time dependence permits monitoring the transition from classical diffusion
to Anderson localization.

View original: http://arxiv.org/abs/1108.1282