67 citations · 172 across the 6 of their papers we have counts for
6 papers
Bias driven coherent carrier dynamics in a two-dimensional aperiodic potential
F. A. B. F. de Moura, L. P. Viana, M. L. Lyra +2
We study the dynamics of an electron wave-packet in a two-dimensional square lattice with an aperiodic site potential in the presence of an external uniform electric field. The ape…
Critical wave-packet dynamics in the power-law bond disordered Anderson Model
R. P. A. Lima, F. A. B. F. de Moura, M. L. Lyra +1
We investigate the wave-packet dynamics of the power-law bond disordered one-dimensional Anderson model with hopping amplitudes decreasing as . We conside…
Localization properties of a one-dimensional tight-binding model with non-random long-range inter-site interactions
F. A. B. F. de Moura, A. V. Malyshev, M. L. Lyra +2
We perform both analytical and numerical studies of the one-dimensional tight-binding Hamiltonian with stochastic uncorrelated on-site energies and non-fluctuating long-range hoppi…
Bloch oscillations in an aperiodic one-dimensional potential
F. A. B. F. de Moura, M. L. Lyra, F. Dominguez-Adame +1
We study the dynamics of an electron subjected to a static uniform electric field within a one-dimensional tight-binding model with a slowly varying aperiodic potential. The unbias…
Delocalization and wave-packet dynamics in one-dimensional diluted Anderson models
F. A. B. F. de Moura, M. N. B. Santos, U. L. Fulco +3
We study the nature of one-electron eigen-states in a one-dimensional diluted Anderson model where every Anderson impurity is diluted by a periodic function . Using renormal…
Stochastic description of the dynamics of the random-exchange Heisenberg chain
M. H. Vainstein, R. Morgado, F. A. Oliveira +2
We study the diffusion process in a Heisenberg chain with correlated spatial disorder, with a power spectrum in the momentum space behaving as , using a stochastic descript…