604 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR89 papers
- Universidade Federal do Rio de JaneiroBR50 papers
- Consejo Nacional de Investigaciones Científicas y TécnicasAR40 papers
- Louisiana State UniversityUS39 papers
- Universidad de MontevideoUY38 papers
- Universidad de Buenos AiresAR37 papers
- Universidad La RepúblicaCL37 papers
- Laboratoire de Physique Théorique de la Matière CondenséeFR31 papers
- Universidade Federal do Rio Grande do SulBR27 papers
- Universitat de ValènciaES25 papers
- Sorbonne UniversitéFR24 papers
- Universidad ORT UruguayUY24 papers
16 papers · 1 filter
Discrete quantum gravity: applications to cosmology
Rodolfo Gambini, Jorge Pullin
We consider the application of the consistent lattice quantum gravity approach we introduced recently to the situation of a Friedmann cosmology and also to Bianchi cosmological mod…
The Gross-Neveu model at finite temperature at next to leading order in the 1/N expansion
J. P. Blaizot, R. Mendez-Galain, N. Wschebor
We present new results on the Gross-Neveu model at finite temperature and at next-to-leading order in the 1/N expansion. In particular, a new expression is obtained for the effecti…
Delay-induced Synchronization Phenomena in an Array of Globally Coupled Logistic Maps
A. C. Martí, C. Masoller
We study the synchronization of a linear array of globally coupled identical logistic maps. We consider a time-delayed coupling that takes into account the finite velocity of propa…
Exploring the cooperative regimes in a model of agents without memory or "tags": indirect reciprocity vs. selfish incentives
H. Fort
The self-organization in cooperative regimes in a simple mean-field version of a model based on "selfish" agents which play the Prisoner's Dilemma (PD) game is studied. The agents…
Tau EDM at Low Energies
J. Bernabéu, Gabriel A. González-Sprinberg, Jordi Vidal
Low energy tau pair production, at B factories and on top of the resonances, allows for a detailed investigation on the CP violation at the electromagnetic tau pair production…
Inhibition of electromagnetically induced absorption due to excited state decoherence in Rb vapor
H. Failache, P. Valente, G. Ban +2
The explanation presented in [Taichenachev et al, Phys. Rev. A {\bf 61}, 011802 (2000)] according to which the electromagnetically induced absorption (EIA) resonances observed in d…
Characterization of the anticipated synchronization regime in the coupled FitzHugh--Nagumo model for neurons
Raul Toral, C. Masoller, Claudio R. Mirasso +2
We characterize numerically the regime of anticipated synchronization in the coupled FitzHugh-Nagumo model for neurons. We consider two neurons, coupled unidirectionally (in a mast…
Temporal build-up of electromagnetically induced transparency and absorption resonances in degenerate two-level transitions
P. Valente, H. Failache, A. Lezama
The temporal evolution of electromagnetically induced transparency (EIT) and absorption (EIA) coherence resonances in pump-probe spectroscopy of degenerate two-level atomic transit…
A physical distinction between a covariant and non covariant reduction process in relativistic quantum theories
Rodolfo Gambini, Rafael A. Porto
Causality imposes strong restrictions on the type of operators that may be observables in relativistic quantum theories. In fact, causal violations arise when computing conditional…
A model for mutation in bacterial populations
R. Donangelo, H. Fort
We describe the evolution of populations through a Bak-Sneppen type model which incorporates random mutations. We show that, for a value of the mutation level which coinci…
Canonical quantization of general relativity in discrete space-times
Rodolfo Gambini, Jorge Pullin
It has long been recognized that lattice gauge theory formulations, when applied to general relativity, conflict with the invariance of the theory under diffeomorphisms. Additional…
Massive Yang-Mills Theory in Abelian Gauges
U. Ellwanger, N. Wschebor
We prove the perturbative renormalisability of pure SU(2) Yang-Mills theory in the abelian gauge supplemented with mass terms. Whereas mass terms for the gauge fields charged under…
Markovian Behaviour and Constrained Maximization of the Entropy in Chaotic Quantum Systems
A. Romanelli, A. C. Sicardi Schifino, G. Abal +2
The separation of the Schrödinger equation into a Markovian and an interference term provides a new insight in the quantum dynamics of classically chaotic systems. The competition…
Dalitz Plot Analysis of the Decay D^+ --> K^- pi^+ pi^+ and Indication of a Low-Mass Scalar K pi Resonance
E791 Collaboration
We study the Dalitz plot of the decay D^+ --> K^- pi^+ pi^+ with a sample of 15090 events from Fermilab experiment E791. Modeling the decay amplitude as the coherent sum of known K…
Different regimes of synchronization in nonidentical time-delayed maps
Cristina Masoller, Damián H. Zanette
We study the synchronization of time-delayed nonidentical maps subject to unidirectional (master-slave) coupling. The individual dynamics of the maps have a delay n1, and the coupl…
Anticipating the response of excitable systems driven by random forcing
M. Ciszak, O. Calvo, C. Masoller +2
We study the regime of anticipated synchronization in unidirectionally coupled model neurons subject to a common external aperiodic forcing that makes their behavior unpredictable.…