Coherent electron dynamics in a two-dimensional random system with mobility edges

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dc.creatorde Moura, F. A. B. F.
dc.creatorLyra, M. L.
dc.creatorDominguez-Adame, F.
dc.creatorMalyshev, V. A.
dc.date2007-01-10
dc.date.accessioned2026-07-07T07:41:24Z
dc.date.available2026-07-07T07:41:24Z
dc.descriptionWe study numerically the dynamics of a one-electron wave packet in a two-dimensional random lattice with long-range correlated diagonal disorder in the presence of a uniform electric field. The time-dependent Schrödinger equation is used for this purpose. We find that the wave packet displays Bloch-like oscillations associated with the appearance of a phase of delocalized states in the strong correlation regime. The amplitude of oscillations directly reflects the bandwidth of the phase and allows to measure it. The oscillations reveal two main frequencies whose values are determined by the structure of the underlying potential in the vicinity of the wave packet maximum.
dc.description8 pages, 4 figures, to appear in J. Phys.: Condens. Matter
dc.identifierhttps://arxiv.org/abs/cond-mat/0701202
dc.identifierhttp://arxiv.org/abs/cond-mat/0701202
dc.identifierJ. Phys.: Condens. Matter 19, 056204 (2007)
dc.identifierdoi:10.1088/0953-8984/19/5/056204
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/122096
dc.subjectDisordered Systems and Neural Networks
dc.titleCoherent electron dynamics in a two-dimensional random system with mobility edges
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