1.4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Bariloche Atomic CentreAR1.2k papers
- Comisión Nacional de Energía AtómicaAR652 papers
- Consejo Nacional de Investigaciones Científicas y TécnicasAR626 papers
- Universidad Nacional de CuyoAR228 papers
- Centre National de la Recherche ScientifiqueFR222 papers
- Universidad de Buenos AiresAR172 papers
- Universidad Nacional de La PlataAR145 papers
- Institute of Astronomy and Space PhysicsAR137 papers
- Universidad Nacional Autónoma de MéxicoMX125 papers
- National University of General San MartínAR111 papers
- Fermi National Accelerator LaboratoryUS106 papers
- Universidade de Santiago de CompostelaES105 papers
35 papers · 1 filter
Detection of spin polarized currents in quantum point contacts via transverse electron focusing
A. Reynoso, Gonzalo Usaj, C. A. Balseiro
It has been predicted recently that an electron beam can be polarized when it flows adiabatically through a quantum point contact in a system with spin-orbit interaction. Here, we…
Correlated enhancement of Hc2 and Jc in carbon nanotube-doped MgB2
A. Serquis, G. Serrano, S. Moreno +4
The use of MgB2 in superconducting applications still awaits for the development of a MgB2-based material where both current-carrying performance and critical magnetic field are op…
Casimir bag energy in the stochastic approximation to the pure QCD vacuum
C. D. Fosco, L. E. Oxman
We study the Casimir contribution to the bag energy coming from gluon field fluctuations, within the context of the stochastic vacuum model (SVM) of pure QCD. After formulating the…
Quantum chaos in the mesoscopic device for the Josephson flux qubit
Ezequiel N. Pozzo, Daniel Dominguez, Maria Jose Sanchez
We show that the three-junction SQUID device designed for the Josephson flux qubit can be used to study quantum chaos when operated at high energies. In the parameter region where…
Strain localization driven by structural relaxation in sheared amorphous solids
E. A. Jagla
A two dimensional amorphous material is modeled as an assembly of mesoscopic elemental pieces coupled together to form an elastically coherent structure. Plasticity is introduced a…
Quasiparticle dispersion near the Fermi surface in NaCoO
A. Bourgeois, A. A. Aligia, T. Kroll +1
We construct an effective Hamiltonian for the motion of t2g highly correlated states in NaxCoO2. This three-band model includes the indirect Co-O-Co hopping t and the crystal-field…
Nonequilibrium structures and dynamic transitions in driven vortex lattices with disorder
Alejandro B. Kolton, Daniel Domínguez
We review our studies of elastic lattices driven by an external force in the presence of random disorder, which correspond to the case of vortices in superconducting thin films…
Conductance through an array of quantum dots
A. M. Lobos, A. A. Aligia
We propose a simple approach to study the conductance through an array of interacting quantum dots, weakly coupled to metallic leads. Using a mapping to an effective site which…
Observing the evaporation transition in vibro-fluidized granular matter
Jorge E. Fiscina, Manuel O. Caceres
By shaking a sand box the grains on the top start to jump giving the picture of evaporating a sand bulk, and a gaseous transition starts at the surface granular matter (GM) bed. Mo…
Phenomenological description of quantum gravity inspired modified classical electrodynamics
R. Montemayor, Luis F. Urrutia
We discuss a large class of phenomenological models incorporating quantum gravity motivated corrections to electrodynamics. The framework is that of electrodynamics in a birefringe…
Mott transition in the Hubbard model away from particle-hole symmetry
D. J. Garcia, E. Miranda, K. Hallberg +1
We solve the Dynamical Mean Field Theory equations for the Hubbard model away from the particle-hole symmetric case using the Density Matrix Renormalization Group method. We focus…
Nonequilibrium magnetotransport through a quantum dot: An interpolative perturbative approach
A. A. Aligia
We study the differential conductance, spectral density and magnetization, for a quantum dot coupled to two conducting leads as a function of bias voltage, magnetic field and tempe…
Enhancing the Pierre Auger Observatory to the 10^{17} to 10^{18.5} eV Range: Capabilities of an Infill Surface Array
M. C. Medina, M. Gomez Berisso, I. Allekotte +3
The Pierre Auger Observatory has been designed to study the highest-energy cosmic rays in nature (E > 10^{18.5} eV). The determination of their arrival direction, energy and compos…
Kohn-Sham Exchange Potential for a Metallic Surface
C. M. Horowitz, C. R. Proetto, S. Rigamonti
The behavior of the surface barrier that forms at the metal-vacuum interface is important for several fields of surface science. Within the Density Functional Theory framework, thi…
Kondo effect with non collinear polarized leads: a numerical renormalization group analysis
P. Simon, P. S. Cornaglia, D. Feinberg +1
The Kondo effect in quantum dots attached to ferromagnetic leads with general polarization directions is studied combining poor man scaling and Wilson's numerical renormalization g…
Kondo Quantum Dots and the Novel Kondo-doublet interaction
J. Simonin
We analyze the interactions between two Kondo Quantum Dots connected to a Rashba-active Quantum Wire. We find that the Kondo-doublet interaction, at an inter-dot distance of the or…
Anisotropy studies around the galactic centre at EeV energies with the Auger Observatory
The Pierre Auger Collaboration
Data from the Pierre Auger Observatory are analyzed to search for anisotropies near the direction of the Galactic Centre at EeV energies. The exposure of the surface array in this…
Magnetization reversal and anomalous coercive field temperature dependence in MnAs epilayers grown on GaAs(100) and GaAs(111)B
L. B. Steren, J. Milano, V. Garcia +3
The magnetic properties of MnAs epilayers have been investigated for two different substrate orientations: GaAs(100) and GaAs(111). We have analyzed the magnetization reversal unde…
Polarization dependence of x-ray absorption spectra in Na_xCoO_2
T. Kroll, A. A. Aligia, G. A. Sawatzky
In order to shed light on the electronic structure of Na_xCoO_2, and motivated by recent Co L-edge X-ray absorption spectra (XAS) experiments with polarized light, we calculate the…
Effective action for in a region with borders
C. D. Fosco, F. D. Mazzitelli
We study quantum effects due to a Dirac field in 2+1 dimensions, confined to a spatial region with a non-trivial boundary, and minimally coupled to an Abelian gauge field. To that…
An upper limit to the photon fraction in cosmic rays above 10^19 eV from the Pierre Auger Observatory
Pierre Auger Collaboration
An upper limit of 16% (at 95% c.l.) is derived for the photon fraction in cosmic rays with energies greater than 10^19 eV, based on observations of the depth of shower maximum perf…
Synchronization and structure in an adaptive oscillator network
Pablo M. Gleiser, Damián H. Zanette
We analyze the interplay of synchronization and structure evolution in an evolving network of phase oscillators. An initially random network is adaptively rewired according to the…
Non-genericity of infinitesimal variations of Hodge structures arising in some geometric contexts
Emmanuel Allaud, Javier Fernandez
We prove that the infinitesimal variations of Hodge structure arising in a number of geometric situations are non-generic. In particular, we consider the case of generic hypersurfa…
Electron-Phonon Correlation Effects in Molecular Transistors
C. A. Balseiro, P. S. Cornaglia, D. R. Grempel
The interplay of electron-electron and electron-phonon interactions is studied analytically in the Kondo regime. A Holstein electron-phonon coupling is shown to produce a weakening…