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19962026
most citedDark torsion as the cosmic speed-up

1.2k citations

Showing 2012Show all

30 papers · 1 filter

astro-ph.SR2012★ 85 cited

Linking two consecutive nonmerging magnetic clouds with their solar sources

S. Dasso, C. H. Mandrini, B. Schmieder +10

On 15 May 2005, a huge interplanetary coronal mass ejection (ICME) was observed near Earth. It triggered one of the most intense geomagnetic storms of solar cycle 23 (Dst peak = -2…

physics.optics2012★ 12 cited

Cavity equations for a positive or negative refraction index material with electric and magnetic non-linearities

Daniel A. Mártin, Miguel Hoyuelos

We study evolution equations for electric and magnetic field amplitudes in a ring cavity with plane mirrors. The cavity is filled with a positive or negative refraction index mater…

cond-mat.stat-mech2012★ 6 cited

Evolution equation for tagged particle density and correlations in single file diffusion

Gonzalo Suárez, Miguel Hoyuelos, Héctor O. Mártin

We derive and study a theoretical description for single file diffusion, i.e., diffusion in a one dimensional lattice of particles with hard core interaction. It is well known that…

math.NA2012

Lie-Trotter method for abstract semilinear evolution equations

Juan Pablo Borgna, Mariano De Leo, Diego Rial +1

In this paper we present a unified picture concerning Lie-Trotter method for solving a large class of semilinear problems: nonlinear Schrödinger, Schröginger--Poisson, Gross--Pitae…

math.AC2012

Subresultants, Sylvester sums and the rational interpolation problem

Carlos D'Andrea, Teresa Krick, Agnes Szanto

We present a solution for the classical univariate rational interpolation problem by means of (univariate) subresultants. In the case of Cauchy interpolation (interpolation without…

quant-ph2012★ 1 cited

A discussion on the origin of quantum probabilities

Federico Holik, Angel Plastino, Manuel Sáenz

We study the origin of quantum probabilities as arising from non-boolean propositional-operational structures. We apply the method developed by Cox to non distributive lattices and…

gr-qc2012★ 28 cited

Dark matter, dark energy, and dark radiation coupled with a transversal interaction

Luis P. Chimento, Martín G. Richarte

We investigate a cosmological scenario with three interacting components that includes dark matter, dark energy, and radiation in the spatially flat Friedmann-Robertson-Walker univ…

math.CA2012

Critical Pairs of Sequences of a Mixed Frame Potential

Ivana Carrizo, Sigrid Heineken

The classical frame potential in a finite dimensional Hilbert space has been introduced by Benedetto and Fickus, who showed that all finite unit-norm tight frames can be characteri…

cond-mat.quant-gas2012★ 4 cited

Localization of an inhomogeneous Bose-Einstein condensate in a moving random potential

Ardavan Alamir, Pablo Capuzzi, Patrizia Vignolo

We study the dynamics of a harmonically trapped quasi-one-dimensional Bose-Einstein condensate subjected to a moving disorder potential of finite extent. We show that, due to the i…

math.CA2012★ 1 cited

Weighted convolution inequalities for radial functions

Pablo L. De Nápoli, Irene Drelichman

We obtain convolution inequalities in Lebesgue and Lorentz spaces with power weights when the functions involved are assumed to be radially symmetric. We also present applications…

cs.CV2012★ 1 cited

Assessment of SAR Image Filtering using Adaptive Stack Filters

Maria E. Buemi, Marta Mejail, Julio Jacobo +2

Stack filters are a special case of non-linear filters. They have a good performance for filtering images with different types of noise while preserving edges and details. A stack…

gr-qc2012★ 75 cited

Gravitational lensing by massless braneworld black holes

Ernesto F. Eiroa, Carlos M. Sendra

In this paper, we study massless braneworld black holes as gravitational lenses. We find the weak and the strong deflection limits for the deflection angle, from which we calculate…

gr-qc2012★ 5 cited

Form invariance symmetry generates a large set of FRW cosmologies

Luis P. Chimento, Martín G. Richarte, Iván E. Sánchez G

We show that Einstein's field equations for spatially flat Friedmann-Robertson-Walker (FRW) space times have a form invariance symmetry (FIS) realized by the form invariance transf…

math.FA2012★ 10 cited

On the polynomial Lindenstrauss theorem

Daniel Carando, Silvia Lassalle, Martín Mazzitelli

Under certain hypotheses on the Banach space , we show that the set of -homogeneous polynomials from to any dual space, whose Aron-Berner extensions are norm attaining, i…

math.FA2012★ 5 cited

Lower bounds for norms of products of polynomials on spaces

Daniel Carando, Damian Pinasco, Jorge Tomás Rodríguez

For we obtain sharp inequalities for the supremum of products of homogeneous polynomials on , whenever the number of factors is no greater than the dimension of t…

quant-ph2012★ 6 cited

Decoherence and Loss of Entanglement in Acoustic Black Holes

Fernando C. Lombardo, Gustavo J. Turiaci

We studied the process of decoherence in acoustic black holes. We focused on the ion trap model proposed by Horstmann et al. (Phys. Rev. Lett. 104, 250403 (2010)) but the formalism…

physics.space-ph2012★ 114 cited

Global and local expansion of magnetic clouds in the inner heliosphere

Adriana Maria Gulisano, Pascal Demoulin, Sergio Dasso +2

Observations of magnetic clouds (MCs) are consistent with the presence of flux ropes detected in the solar wind (SW) a few days after their expulsion from the Sun as coronal mass e…

quant-ph2012★ 15 cited

Controlling open quantum systems using fast transitions

P. M. Poggi, F. C. Lombardo, D. A. Wisniacki

Unitary control and decoherence appear to be irreconcilable in quantum mechanics. When a quantum system interacts with an environment, control strategies usually fail due to decohe…

physics.soc-ph2012★ 32 cited

Temporal percolation of the susceptible network in an epidemic spreading

L. D. Valdez, P. A. Macri, L. A. Braunstein

In this work, we study the evolution of the susceptible individuals during the spread of an epidemic modeled by the susceptible-infected-recovered (SIR) process spreading on the to…

astro-ph.CO2012★ 18 cited

Analytic approach to the motion of cosmological phase transition fronts

Ariel Megevand, Alejandro D. Sanchez

We consider the motion of planar phase-transition fronts in first-order phase transitions of the Universe. We find the steady state wall velocity as a function of a friction coeffi…

gr-qc2012★ 3 cited

Holographic dark energy linearly interacting with dark matter

Luis P. Chimento, Mónica I. Forte, Martín G. Richarte

We investigate a spatially flat Friedmann-Robertson-Walker (FRW) cosmological model with cold dark matter coupled to a modified holographic Ricci dark energy through a general inte…

math.CA2012

On packing measures and a theorem of Besicovitch

Ignacio García, Pablo Shmerkin

Besicovitch showed that if a set is null for the Hausdorff measure associated to a given dimension function, then it is still null for the Hausdorff measure corresponding to a smal…

gr-qc2012★ 38 cited

f(R) and f(T) theories of modified gravity

Rafael Ferraro

We briefly review f(R) theories, both in the metric and Palatini formulations, their scalar-tensor representations and the chameleon mechanism that could explain the absence of per…

hep-th2012★ 4 cited

Massless geodesics in as a superintegrable system

Emilio Rubín de Celis, Osvaldo Santillán

A Carter like constant for the geodesic motion in the Einstein-Sasaki geometries is presented. This constant is functionally independent with respect to the five known con…