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Tulio O. Carvalho, Cesar R. de Oliveira
Hybrid Quasicrystals, Transport and Localization in Products of Minimal Sets
(294K, pdf)

ABSTRACT.  We consider convex combinations of finite-valued almost periodic
sequences (mainly substitution sequences) and put them as potentials of one-dimensional tight-binding models. We
prove that these sequences are almost periodic. We call such combinations {\em hybrid quasicrystals} and these studies
are related to the minimality, under the shift on both coordinates, of the product space of the respective (minimal)
hulls. We observe a rich variety of behaviors on the quantum dynamical transport ranging from localization to transport.
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