Publication: Superballistic spreading of wave packets
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Date
2001
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Journal ISSN
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Publisher
American Physical Soc
Abstract
We demonstrate for various systems that the variance of a wave packet M(t)proportional tot(v), can show a superballistic increase with 23, for parametrically large time intervals. A model is constructed that explains this phenomenon and its predictions are verified numerically for various disordered and quasiperiodic systems.