RT Journal Article
T1 Bloch-like oscillations in a one-dimensional lattice with long-range correlated disorder
A1 Domínguez-Adame Acosta, Francisco
A1 Malyshev, Andrey
A1 Moura, F. A. B. F., de
A1 Lyra, M. L.
AB We study the dynamics of an electron subjected to a uniform electric field within a tight-binding model with long-range-correlated diagonal disorder. The random distribution of site energies is assumed to have a power spectrum S(k)similar to1/k(alpha) with alpha>0. de Moura and Lyra [Phys. Rev. Lett. 81, 3735 (1998)10.1103/Phys. Rev. Lett.81.3735] predicted that this model supports a phase of delocalized states at the band center, separated from localized states by two mobility edges, provided alpha>2. We find clear signatures of Bloch-like oscillations of an initial Gaussian wave packet between the two mobility edges and determine the bandwidth of extended states, in perfect agreement with the zero-field prediction.
PB American Physical Society
SN 0031-9007
YR 2003
FD 2003-11-07
LK https://hdl.handle.net/20.500.14352/51258
UL https://hdl.handle.net/20.500.14352/51258
LA eng
NO © 2003 The American Physical Society.V. A. M. acknowledges support from NATO. Work at Madrid was supported by DGI-MCyT (MAT2000-0734). Work at Brazil was supported by CNPq and CAPES (Brazilian research agencies) and FAPEAL (Alagoas State agency).
NO DGI-MCyT
NO CNPq
NO CAPES
NO FAPEAL
NO NATO
DS Docta Complutense
RD 8 abr 2025