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40 papers · 1 filter
Transition from anomalous to normal hysteresis in a system of coupled Brownian motors: a mean field approach
S. E. Mangioni, R. R. Deza, H. S. Wio
We address a recently introduced model describing a system of periodically coupled nonlinear phase oscillators submitted to multiplicative white noises, wherein a ratchet-like tran…
On the Influence of Noise on the Critical and Oscillatory Behavior of a Predator-Prey Model: Coherent Stochastic Resonance at the Proper Frequency
A. F. Rozenfeld, C. J. Tessone, E. Albano +1
Noise induced changes in the critical and oscillatory behavior of a Prey-Predator system are studied using power spectrum density and Spectral Amplification Factor (SAF) analysis.…
Trapping Dynamics with Gated Traps: Stochastic Resonance-Like Phenomenon
Alejandro D. Sanchez, Jorge A. Revelli, Horacio S. Wio
We present a simple one-dimensional trapping model prompted by the problem of ion current across biological membranes. The trap is modeled mimicking the ionic channel membrane beha…
Island phases and charge order in two-dimensional manganites
H. Aliaga, B. Normand, K. Hallberg +2
The ferromagnetic Kondo lattice model with an antiferromagnetic interaction between localized spins is a minimal description of the competing kinetic t and magnetic K energy terms…
D=4 Chiral String Compactifications from Intersecting Branes
G. Aldazabal, S. Franco, L. E. Ibanez +2
Intersecting Dp-branes often give rise to chiral fermions living on their intersections. We study the construction of four-dimensional chiral gauge theories by considering configur…
Intersecting Brane Worlds
G. Aldazabal, S. Franco, L. E. Ibanez +2
It is known that chiral fermions naturally appear at certain intersections of branes at angles. Motivated by this fact, we propose a string scenario in which different standard mod…