8.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- L. Sánchez‐Soto128 · h 37
- M. Martin-Delgado126 · h 47
- F. Llanes-Estrada122 · h 28
- P. Pérez-González2 profiles120 · h 71
- V. Martín-Mayor112 · h 41
- J. Caballero3 profiles103 · h 36
- D. Montes2 profiles100 · h 47
- A. Dobado96 · h 32
- A. L. Maroto79 · h 32
- F. Domínguez‐Adame79 · h 28
- J. Gallego73 · h 30
- L. A. Fernández70 · h 28
- Instituto de Astrofísica de CanariasES749 papers
- Centre National de la Recherche ScientifiqueFR727 papers
- Consejo Superior de Investigaciones CientíficasES669 papers
- Universidad de La LagunaES660 papers
- Universidad Autónoma de MadridES549 papers
- Instituto de Astrofísica de AndalucíaES514 papers
- National Institute for AstrophysicsIT368 papers
- Centro de AstrobiologíaES366 papers
- Universidad Carlos III de MadridES354 papers
- University of PaduaIT351 papers
- Institute of Mathematical SciencesIN350 papers
- Institute of Space SciencesES347 papers
32 papers · 1 filter
Measures of critical exponents in the four dimensional site percolation
H. G. Ballesteros, L. A. Fernandez, V. Martin-Mayor +3
Using finite-size scaling methods we measure the thermal and magnetic exponents of the site percolation in four dimensions, obtaining a value for the anomalous dimension very diffe…
The Lie Algebraic Structure of Differential Operators Admitting Invariant Spaces of Polynomials
Federico Finkel, Niky Kamran
We prove that the scalar and matrix differential operators which preserve the simplest scalar and vector-valued polynomial modules in two variables have a fundamental L…
Theory for Diffusion-Limited Oscillating Chemical Reactions
H. J. Bussemaker, R. Brito
A kinetic description of lattice-gas automaton models for reaction-diffusion systems is presented. It provides corrections to the mean-field rate equations in the diffusion-limited…
Separation of Semialgebraic Sets
F. Acquistapace, C. Andradas, F. Broglia
In this paper we study the problem of deciding whether two disjoint semialgebraic sets of an algebraic variety over R are separable by a polynomial. For that we isolate a dense sub…
Is trivial the antiferromagnetic RP(2) model in four dimensions?
H. G. Ballesteros, J. M. Carmona, L. A. Fernandez +3
We study the antiferromagnetic RP(2) model in four dimensions. We find a second order transition with two order parameters, one ferromagnetic and the other antiferromagnetic. The a…
On the gauge dependence of the topological sigma model beta functions
Luis Alvarez-Consul, C. P. Martin
We compute the dependence on the classical action "gauge" parameters of the beta functions of the standard topological sigma model in flat space. We thus show that their value is a…
Real-Space Renormalization Group Method Applied to Quantum Lattice Hamiltonians
Miguel A. Martin-Delgado
I review recent work and some new results, performed in collaboration with G. Sierra, on the Real-Space Renormalization group method applied to quantum spin lattice systems mainly…
Scalar and Tensor Inhomogeneities from Dimensional Decoupling
Massimo Giovannini
We discuss some perturbative techniques suitable for the gauge-invariant treatment of the scalar and tensor inhomogeneities of an anisotropic and homogeneous background geometry wh…
Dynamical phenomena in Fibonacci Semiconductor Superlattices
Enrique Diez, Francisco Dominguez-Adame, Enrique Macia +1
We present a detailed study of the dynamics of electronic wavepackets in Fibonacci semiconductor superlattices, both in flat band conditions and subject to homogeneous electric fie…
Library of high and mid-resolution spectra in the CaII H & K, H{alpha}, H{beta}, NaI D{1}, D{2}, and HeI D{3} line regions of F, G, K and M field stars
D. Montes, E. L. Martin, M. J. Fernandez-Figueroa +2
In this work we present spectroscopic observations centered in the spectral lines most widely used as optical indicators of chromospheric activity (H{alpha}, H{beta}, Ca II H & K,…
On the Divergence of Perturbation Theory. Steps Towards a Convergent Series
S. A. Pernice, G. Oleaga
The mechanism underlying the divergence of perturbation theory is exposed. This is done through a detailed study of the violation of the hypothesis of the Dominated Convergence The…
Spectroscopic properties, spatial and luminosity distributions of the UCm survey galaxies
J. Gallego, J. Zamorano, M. Rego +1
A spectroscopic analysis of the whole sample of H Emission-Line Galaxies (ELGs) contained in the lists 1 & 2 of the Universidad Complutense de Madrid (UCM) objective-prism surve…
Vanishing Theorems and Syzygies for K3 Surfaces and Fano Varieties
F. J. Gallego, B. P. Purnaprajna
In this article we prove some strong vanishing theorems on K3 surfaces. As an aplication of them, we obtain higher syzygy results for K3 surfaces and Fano varieties.
Critical exponents and unusual properties of the broken phase in the 3d-RP(2) antiferromagnetic model
H. G. Ballesteros, L. A. Fernandez, V. Martin-Mayor +1
We present the results of a Monte Carlo simulation of the antiferromagnetic RP(2) model in three dimensions. With finite-size scaling techniques we accurately measure the critical…
Antiferromagnetism in four dimensions: search for non-triviality
J. L. Alonso, H. G. Ballesteros, I. Campos +8
We present antiferromagnetism as a mechanism capable of modifying substantially the phase diagram and the critical behaviour of statistical mechanical models. This is particularly…
Higgs Physics in the Large N limit
A. Dobado, J. Morales, J. R. Pelaez +1
In this paper we study the large N limit of the Standard Model Higgs sector with , and constant and being the number of would-be Goldstone bosons. Despite th…
Flux flow resistivity and vortex viscosity of high-Tc films
J. I. Martin, M. Velez, F. Guinea +1
The flux flow regime of high-T samples of different normal state resistivities is studied in the temperature range where the sign of the Hall effect is reversed. The scal…
Null-plane Quantum Universal -matrix
A. Ballesteros, F. J. Herranz, C. M. Pereña
A non-linear map is applied onto the (non-standard) null-plane deformation of (3+1) Poincaré algebra giving rise to a simpler form of this triangular quantization. A universal -…
Finite size effects on measures of critical exponents in d=3 O(N) models
H. G. Ballesteros, L. A. Fernandez, V. Martin-Mayor +1
We study the critical properties of three-dimensional O(N) models, for N=2,3,4. Parameterizing the leading corrections-to-scaling for the exponent, we obtain a reliable infinit…
Snakes and Ladders
M. A. Martin-Delgado, R. Shankar, G. Sierra
We map spin ladders with legs and couplings across all rungs and along the legs, staggered in both directions, to a sigma model. Setting its (w…
Critical properties of the Antiferromagnetic \RP2$ model in three dimensions
H. G. Ballesteros, L. A. Fernandez, V. Martin-Mayor +1
We study the behavior of the antiferromagnetic RP model in . The vacuum structure is analyzed in the critical and low temperature regions, paying special attention to the…
The Standard Model as a noncommutative geometry: the low energy regime
C. P. Martin, Jose M. Gracia-Bondia, Joseph C. Varilly
We render a thorough, physicist's account of the formulation of the Standard Model (SM) of particle physics within the framework of noncommutative differential geometry (NCG). We w…
Long-range effects on optical absorption in quasiperiodic lattices
Francisco Dominguez-Adame
We consider exciton optical absorption in quasiperiodic lattices, focusing our attention on the Fibonacci case as typical example. The absorption spectrum is evaluated by solving n…
Can fractal-like spectra be experimentally observed in aperiodic superlattices?
Enrique Macia, Francisco Dominguez-Adame
We numerically investigate the effects of inhomogeneities in the energy spectrum of aperiodic semiconductor superlattices, focusing our attention on Thue-Morse and Fibonacci sequen…