239 citations · 1.1k across the 28 of their papers we have counts for
15 papers · 1 filter
Nonuniversal large-size asymptotics of the Lyapunov exponent in turbulent globally coupled maps
David Velasco, Juan M. López, Diego Pazó
Globally coupled maps (GCMs) are prototypical examples of high-dimensional dynamical systems. Interestingly, GCMs formed by an ensemble of weakly coupled identical chaotic units ge…
Diverging fluctuations of the Lyapunov exponents
Diego Pazo, Juan M. Lopez, Antonio Politi
We show that in generic one-dimensional Hamiltonian lattices the diffusion coefficient of the maximum Lyapunov exponent diverges in the thermodynamic limit. We trace this back to t…
From quasiperiodic partial synchronization to collective chaos in populations of inhibitory neurons with delay
Diego Pazó, Ernest Montbrió
Collective chaos is shown to emerge, via a period-doubling cascade, from quasiperiodic partial synchronization in a population of identical inhibitory neurons with delayed global c…
Synchronizing spatio-temporal chaos with imperfect models: a stochastic surface growth picture
Diego Pazó, Juan M. López, Rafael Gallego +1
We study the synchronization of two spatially extended dynamical systems where the models have imperfections. We show that the synchronization error across space can be visualized…
Universal scaling of Lyapunov-exponent fluctuations in space-time chaos
Diego Pazó, Juan M. López, Antonio Politi
Finite-time Lyapunov exponents of generic chaotic dynamical systems fluctuate in time. These fluctuations are due to the different degree of stability across the accessible phase-s…
Covariant hydrodynamic Lyapunov modes and strong stochasticity threshold in Hamiltonian lattices
M. Romero-Bastida, Diego Pazó, Juan M. López
We scrutinize the reliability of covariant and Gram-Schmidt Lyapunov vectors for capturing hydrodynamic Lyapunov modes (HLMs) in one-dimensional Hamiltonian lattices. We show that,…