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Pseudo-two-dimensional random dimer lattices

AutorNaether, Uta; Mejía-Cortés, Cristian; Vicencio, Rodrigo A.
Fecha de publicaciónene-2015
EditorElsevier
CitaciónPhysics Letters A 379(12-13): 988-991 (2015)
ResumenWe study the long-time wave transport in correlated and uncorrelated disordered 2D arrays. When a separation of dimensions is applied to the model, we find that the previously predicted 1D random dimer phenomenology also appears in so-called pseudo-2D arrays. Therefore, a threshold behavior is observed in terms of the effective size for eigenmodes, as well as in long-time dynamics. A minimum system size is required to observe this threshold, which is very important when considering a possible experimental realization. For the long-time evolution, we find that for correlated lattices a super-diffusive long-range transport is observed. For completely uncorrelated disorder 2D transport becomes sub-diffusive within the localization length and for random binary pseudo-2D arrays localization is observed.
DescripciónarXiv:1409.7592v1 (Random dimer model in pseudo two-dimensional lattices).
Versión del editorhttp://dx.doi.org/10.1016/j.physleta.2015.01.032
URIhttp://hdl.handle.net/10261/121221
DOI10.1016/j.physleta.2015.01.032
ISSN0375-9601
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