Author Archive
285. Dephasing and diffusion of quantum particles
This is a guest post by Ariel Amir from the Weizmann Institute of Science. Dmitry.
I was kindly asked by Dmitry to describe a recent work, where diffusion emerges from the decoherence in a noisy environment. This work was done together with Y. Lahini (an experimentalist) and H. Perets (an astrophysicist), and can be found on condmat (arXiv:0902.0890). Let me start by describing what a tight-binding model (for those of you outside Condensed Matter). This will be a convenient tool for us to understand decoherence, and other interesting physics such as ‘motional narrowing’.
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