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- Christopher Gaul, Rodrigo P A Lima, Edwin Diaz, Cord A. Müller, F. Domínguez-Adame
- Physical review letters
- 2009

We investigate Bloch oscillations of interacting cold atoms in a mean-field framework. In general, atom-atom interaction causes dephasing and destroys Bloch oscillations. Here we show that Bloch oscillations are persistent if the interaction is modulated harmonically with suitable frequency and phase. For other modulations, Bloch oscillations are rapidly… (More)

- P. A. Orellana, Mucio Amado, F. Domínguez-Adame
- Nanotechnology
- 2008

We consider the electronic transport through a Rashba quantum dot coupled to ferromagnetic leads. We show that the interference of localized electron states with resonant electron states leads to the appearance of the Fano-Rashba effect. This effect occurs due to the interference of bound levels of spin-polarized electrons with the continuum of electronic… (More)

The underlying band structure of the uniform DNA suggests the allowance of interband optical transitions. We consider such transitions in the uniform synthetic DNA, such as the poly G -poly C DNA, within a simple tight-binding model with a minimum set of parameters. We demonstrate that the helical conformation of the DNA strands results in unusual interband… (More)

Normal modes of one-dimensional disordered chains with two couplings, one of them assigned at random to pairs in an otherwise perfect chain, are investigated. We diagonalize the dynamical matrix to And the normal modes and to study their spatial extent. Multifractal analysis is used to discern clearly the localized or delocalized character of vibrations. In… (More)

- Ainara Rodriguez, V. A. Malyshev, German Sierra, Miguel-Angel Martin-Delgado, Javier Rodríguez-Laguna, F. Domínguez-Adame
- Physical review letters
- 2003

The single-parameter scaling hypothesis predicts the absence of delocalized states for noninteracting quasiparticles in low-dimensional disordered systems. We show analytically, using a supersymmetric method combined with a renormalization group analysis, as well as numerically that extended states may occur in the one- and two-dimensional Anderson model… (More)

Numerical investigations of the trapping of Frenkel excitons in one-dimensional lattices with interstitial traps randomly placed in pairs are presented. The probabilities of 6nding the exciton both in the q = 0 mode P(t) and in any mode Q(t) have been obtained following the numerical approach recently developed by Huber and Ching [Phys. Rev. B 42, 7718… (More)

- Mucio Amado, A. V. Malyshev, Ara G. Sedrakyan, F. Domínguez-Adame
- Physical review letters
- 2011

We calculate numerically the localization length critical index within the Chalker-Coddington model of the plateau-plateau transitions in the quantum Hall effect. We report a finite-size scaling analysis using both the traditional power-law corrections to the scaling function and the inverse logarithmic ones, which provided a more stable fit resulting in… (More)

- Ara G. Sedrakyan, F. Domínguez-Adame
- Physical review letters
- 2006

In a recent paper [1], Caetano and Schulz (CS) claim that intrinsic DNA-correlations, due to the base pairing (A-T and C-G), lead to electron delocalization. Furthermore, they point out that there is a localization-delocalization transition (LDT) for certain parameter ranges. In this Comment we present analytical and numerical evidences that in their model… (More)

- Julen Munárriz, F. Domínguez-Adame, P. A. Orellana, A. V. Malyshev
- Nanotechnology
- 2012

We propose a novel spin filter based on a graphene nanoring fabricated above a ferromagnetic strip. The exchange interaction between the magnetic moments of the ions in the ferromagnet and the electron spin splits the electronic states, and gives rise to spin polarization of the conductance and the total electric current. We demonstrate that both the… (More)

- Emmanuela Diaz, F. Domínguez-Adame, Yu. A. Kosevich, V. A. Malyshev
- 2006

E. Díaz,1,* F. Domínguez-Adame,1,* Yu. A. Kosevich,2,3,† and V. A. Malyshev4,‡ 1Departamento de Física de Materiales, Universidad Complutense, E-28040 Madrid, Spain 2N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, ul. Kosygina 4, 119991 Moscow, Russia 3Nanophotonics Technology Center, Polytechnic University of Valencia, C/Camino de… (More)