Serge Aubry - Physics Department . Technion
Serge Aubry - Physics Department . Technion
Serge Aubry - Physics Department . Technion
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Subdiffusion was claimed only on<br />
the base of the second moment divergency<br />
(not clear numerically poorly defined exponents)<br />
Remark: Divergency of the second moment does not<br />
implies diffusion at all!!!!!<br />
Counter example: The second moment of a wavepacket<br />
in a linear harmonic chain of atoms coupled by<br />
random springs diverges as t 1/2<br />
but there is no diffusion because of Anderson localization<br />
Coll: Analytic estimations R. Schilling, S. Lepri and SA<br />
<strong>Serge</strong> <strong>Aubry</strong>, <strong>Aubry</strong>,<br />
LLB, FRANCE
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