1.3k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidad Autónoma de MadridES613 papers
- Institute of Mathematical SciencesIN550 papers
- Consejo Superior de Investigaciones CientíficasES482 papers
- Universidad Complutense de MadridES354 papers
- Instituto de Ciencia de Materiales de MadridES100 papers
- Instituto de Estructura de la MateriaES87 papers
- Universidad Politécnica de MadridES86 papers
- Universidad de ZaragozaES78 papers
- Centre National de la Recherche ScientifiqueFR69 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di NapoliIT62 papers
- IMDEA NetworksES53 papers
- Universidad de SevillaES51 papers
25 papers · 1 filter
What do emulsification failure and Bose-Einstein condensation have in common?
R. P. Sear, J. A. Cuesta
Ideal bosons and classical ring polymers formed via self-assembly, are known to have the same partition function, and so analogous phase transitions. In ring polymers, the analogue…
Semiconducting Characteristics of Magnesium-Doped Al2O3 Single Crystals
M. Tardio, R. Ramirez, R. Gonzalez +2
DC and AC electrical measurements were performed to investigate the electrical conductivity of alpha-Al2O3:Mg samples with different concentrations of [Mg]^0 centers .The concentra…
Chaotic motion of space charge wavefronts in semiconductors under time-independent voltage bias
I. R. Cantalapiedra, M. J. Bergmann, L. L. Bonilla +1
A standard drift-diffusion model of space charge wave propagation in semiconductors has been studied numerically and analytically under dc voltage bias. For sufficiently long sampl…
Morphology of Ion-Sputtered Surfaces
Maxim Makeev, Rodolfo Cuerno, Albert-László Barabási
We derive a stochastic nonlinear continuum theory to describe the morphological evolution of amorphous surfaces eroded by ion bombardment. Starting from Sigmund's theory of sputter…
Electron-electron interactions in graphene sheets
J. Gonzalez, F. Guinea, M. A. H. Vozmediano
The effects of the electron-electron interactions in a graphene layer are investigated. It is shown that short range couplings are irrelevant, and scale towards zero at low energie…
Mapping the star formation history of Mrk86: I. Data and models
A. Gil de Paz, J. Zamorano, J. Gallego +1
We have obtained optical (BVR, [OIII]5007 and Halpha), near infrared (JHK) imaging and long-slit optical spectroscopy for the Blue Compact Dwarf galaxy Mrk86 (NGC2537). In this pap…
It is the ambiguity. (But only three generations)
A. Rivero
It is suggested that generations are linked to the need of calculating curvature of space via a deformed or discrete calculus. Quantization would limit the deformation, building th…
High-field limit of the Vlasov-Poisson-Fokker-Planck system: A comparison of different perturbation methods
L. L. Bonilla, J. Soler
A reduced drift-diffusion (Smoluchowski-Poisson) equation is found for the electric charge in the high-field limit of the Vlasov-Poisson-Fokker-Planck system, both in one and three…
Chapman-Enskog method and synchronization of globally coupled oscillators
L. L. Bonilla
The Chapman-Enskog method of kinetic theory is applied to two problems of synchronization of globally coupled phase oscillators. First, a modified Kuramoto model is obtained in the…
Deformation of the Fermi surface in the extended Hubbard model
Belen Valenzuela, Maria A. H. Vozmediano
The deformation of the Fermi surface induced by Coulomb interactions is investigated in the t-t'-Hubbard model. The interplay of the local U and extended V interactions is analyzed…
On the existence of internal modes of sine-Gordon kinks
Niurka R. Quintero, Angel Sanchez, Franz G. Mertens
We study whether or not sine-Gordon kinks exhibit internal modes or ``quasimodes.'' By considering the response of the kinks to ac forces and initial distortions, we show that neit…
Resonances in the dynamics of kinks perturbed by ac forces
Niurka R. Quintero, Angel Sanchez, Franz G. Mertens
We study the dynamics of kinks perturbed by an ac force, both with and without damping. We address this issue by using a collective coordinate theory, which allows us to redu…
Phase equilibria in the polydisperse Zwanzig model of hard rods
Nigel Clarke, Jose A Cuesta, Richard Sear +2
We study the phase behaviour of the Zwanzig model of suspensions of hard rods, allowing for polydispersity in the lengths of the rods. In spite of the simplified nature of the mode…
Quasiperiodic time dependent current in driven superlattices: distorted Poincare maps and strange attractors
David Sanchez, Gloria Platero, Luis L. Bonilla
Intriguing routes to chaos have been experimentally observed in semiconductor superlattices driven by an ac field. In this work, a theoretical model of time dependent transport in…
Exact solutions and dynamics of globally coupled phase oscillators
L. L. Bonilla, C. J. Perez-Vicente, F. Ritort +1
We analyze mean-field models of synchronization of phase oscillators with singular couplings and subject to external random forces. They are related to the Kuramoto-Sakaguchi model…
Electrical Conductivity in Magnesium-Doped Al_2 O_3 Crystal at Moderate Temperatures
M. Tardío, R. Ramírez, R. González +2
AC and DC electrical measurements between 273 and 800 K were used to characterize the electrical conductivity of Al_2 O_3:Mg single crystals containing [Mg]^{0} center. At low fiel…
Wavefronts may move upstream in doped semiconductor superlattices
A. Carpio, L. L. Bonilla, A. Wacker +1
In weakly coupled, current biased, doped semiconductor superlattices, domain walls may move upstream against the flow of electrons. For appropriate doping values, a domain wall sep…
Thermal diffusion of sine-Gordon solitons
Niurka R. Quintero, Angel Sanchez, Franz G. Mertens
We analyze the diffusive motion of kink solitons governed by the thermal sine-Gordon equation. We analytically calculate the correlation function of the position of the kink center…
Multiparticle Biased DLA with surface diffusion: a comprehensive model of electrodeposition
Mario Castro, Rodolfo Cuerno, Angel Sanchez +1
We present a complete study of the Multiparticle Biased Diffusion-Limited Aggregation (MBDLA) model supplemented with surface difussion (SD), focusing on the relevance and effects…
Dynamics of Rough Interfaces in Chemical Vapor Deposition: Experiments and a Model for Silica Films
Fernando Ojeda, Rodolfo Cuerno, Roberto Salvarezza +1
We study the surface dynamics of silica films grown by low pressure chemical vapor deposition. Atomic force microscopy measurements show that the surface reaches a scale invariant…
Synchronization in populations of globally coupled oscillators with inertial effects
J. A. Acebron, L. L. Bonilla, R. Spigler
A model for synchronization of globally coupled phase oscillators including ``inertial'' effects is analyzed. In such a model, both oscillator frequencies and phases evolve in time…
External fluctuations in front dynamics with inertia: The overdamped limit
Jose M. Sancho, Angel Sanchez
We study the dynamics of fronts when both inertial effects and external fluctuations are taken into account. Stochastic fluctuations are introduced as multiplicative noise arising…
Roughening and superroughening in the ordered and random two-dimensional sine-Gordon models
Angel Sanchez, A. R. Bishop, Esteban Moro
We present a comparative numerical study of the ordered and the random two-dimensional sine-Gordon models on a lattice. We analytically compute the main features of the expected hi…
Anisotropic Fermi surfaces and Kohn-Luttinger superconductivity in two dimensions
J. Gonzalez, F. Guinea, M. A. H. Vozmediano
The instabilities induced on a two-dimensional system of correlated electrons by the anisotropies of its Fermi line are analyzed on general grounds. Simple scaling arguments allow…