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
39 papers · 1 filter
Universal Behavior of Extreme Price Movements in Stock Markets
Miguel A. Fuentes, Austin Gerig, Javier Vicente
Many studies assume stock prices follow a random process known as geometric Brownian motion. Although approximately correct, this model fails to explain the frequent occurrence of…
Thermometry and signatures of strong correlations from Raman spectroscopy of fermionic atoms in optical lattices
Jean-Sebastien Bernier, Tung-Lam Dao, Corinna Kollath +2
We propose a method to directly measure the temperature of a gas of weakly interacting fermionic atoms loaded into an optical lattice. This technique relies on Raman spectroscopy a…
Bursts generate a non-reducible spike pattern code
Hugo Gabriel Eyherabide, Ariel Rokem, Andreas V. M. Herz +1
At the single-neuron level, precisely timed spikes can either constitute firing-rate codes or spike-pattern codes that utilize the relative timing between consecutive spikes. There…
Renormalization group structure for sums of variables generated by incipiently chaotic maps
Miguel Angel Fuentes, Alberto Robledo
We look at the limit distributions of sums of deterministic chaotic variables in unimodal maps and find a remarkable renormalization group (RG) structure associated to the operatio…
The information transmitted by spike patterns in single neurons
Hugo Gabriel Eyherabide, Ines Samengo
Spike patterns have been reported to encode sensory information in several brain areas. Here we assess the role of specific patterns in the neural code, by comparing the amount of…
Influence of ion implantation on the magnetic and transport properties of manganite films
M. Sirena, A. Zimmers, N. Haberkorn +7
We have used oxygen ions irradiation to generate controlled structural disorder in thin manganite films. Conductive atomic force microscopy CAFM), transport and magnetic measuremen…
Direct observation of electronic inhomogeneities induced by point defect disorder in manganite films
M. Sirena, A. Zimmers, N. Haberkorn +7
We have investigated the influence of point defect disorder in the electronic properties of manganite films. Real-time mapping of ion irradiated samples conductivity was performed…
Oscillations in SIRS model with distributed delays
S. Goncalves, G. Abramson, M. F. C. Gomes
The ubiquity of oscillations in epidemics presents a long standing challenge for the formulation of epidemic models. Whether they are external and seasonally driven, or arise from…
Neumann Casimir effect: a singular boundary-interaction approach
C. D. Fosco, F. C. Lombardo, F. D. Mazzitelli
Dirichlet boundary conditions on a surface can be imposed on a scalar field, by coupling it quadratically to a -like potential, the strength of which tends to infinity. Neumann…
Quantum interference in coherent molecular conductance
Julian Rincon, K. Hallberg, S. Ramasesha
Coherent electronic transport through individual molecules is crucially sensitive to quantum interference. Using exact diagonalization techniques, we investigate the zero-bias and…
Spheromak formation and sustainment by tangential boundary flows
Pablo Luis García-Martínez, Ricardo Farengo
The nonlinear, resistive, 3D magnetohydrodynamic equations are solved numerically to demonstrate the possibility of forming and sustaining a spheromak by forcing tangential flows a…
Microcavity exciton-polariton mediated Raman scattering: Experiments and theory
A. Bruchhausen, L. M. Leon Hilario, A. A. Aligia +4
We studied the intensity of resonant Raman scattering due to optical phonons in a planar II-VI-type semiconductor microcavity in the regime of strong coupling between light and mat…
Intrinsic leakage of the Josephson flux qubit and breakdown of the two-level approximation for strong driving
Alejandro Ferron, Daniel Dominguez
Solid state devices for quantum bit computation (qubits) are not perfect isolated two-level systems, since additional higher energy levels always exist. One example is the Josephso…
Integrable Systems and Poisson-Lie T-duality: a finite dimensional example
S. Capriotti, H. Montani
We study the deep connection between integrable models and Poisson-Lie T-duality working on a finite dimensional example constructed on SL(2,C) and its Iwasawa factors SU(2) and B.…
The firing statistics of Poisson neuron models driven by slow stimuli
Eugenio Urdapilleta, Ines Samengo
The coding properties of cells with different types of receptive fields have been studied for decades. ON-type neurons fire in response to positive fluctuations of the time-depende…
Imaging the essential role of spin-fluctuations in high-Tc superconductivity
N. Jenkins, Y. Fasano, C. Berthod +7
We have used scanning tunneling spectroscopy to investigate short-length electronic correlations in three-layer Bi2Sr2Ca2Cu3O(10+d) (Bi-2223). We show that the superconducting gap…
Improved parallelization techniques for the density matrix renormalization group
Julian Rincon, D. J. Garcia, K. Hallberg
A distributed-memory parallelization strategy for the density matrix renormalization group is proposed for cases where correlation functions are required. This new strategy has sub…
Polariton-mediated Raman scattering in microcavities: A Green's function approach
L. M. Leon Hilario, A. A. Aligia, A. M. Lobos +1
We present calculations of the intensity of polariton-mediated inelastic light scattering in semiconductor microcavities within a Green's function framework. In addition to reprodu…
Derivative expansion for the boundary interaction terms in the Casimir effect: generalized -potentials
C. D. Fosco, F. C. Lombardo, F. D. Mazzitelli
We calculate the Casimir energy for scalar fields in interaction with finite-width mirrors, described by nonlocal interaction terms. These terms, which include quantum effects due…
Photoluminiscence of a quantum dot hybridized with a continuum
L. M. Leon Hilario, A. A. Aligia
We calculate the intensity of photon emission from a trion in a single quantum dot, as a function of energy and gate voltage, using the impurity Anderson model and variational wave…
Nonequilibrium dynamics of a singlet-triplet Anderson impurity near the quantum phase transition
P. Roura Bas, A. A. Aligia
We study the singlet-triplet Anderson model (STAM) in which a configuration with a doublet is hybridized with another with a singlet and a triplet, as a minimal model to describe t…
Atmospheric effects on extensive air showers observed with the Surface Detector of the Pierre Auger Observatory
The Pierre Auger Collaboration
Atmospheric parameters, such as pressure (P), temperature (T) and density, affect the development of extensive air showers initiated by energetic cosmic rays. We have studied the i…
Towards the quantification of the semantic information encoded in written language
Marcelo A. Montemurro, Damian Zanette
Written language is a complex communication signal capable of conveying information encoded in the form of ordered sequences of words. Beyond the local order ruled by grammar, sema…
The Fluorescence Detector of the Pierre Auger Observatory
The Pierre Auger Collaboration, J. Abraham, P. Abreu +515
The Pierre Auger Observatory is a hybrid detector for ultra-high energy cosmic rays. It combines a surface array to measure secondary particles at ground level together with a fluo…