User profiles for Alessandro Torcini

Alessandro Torcini

CY Cergy Paris Université
Verified email at u-cergy.fr
Cited by 4609

Localization and equipartition of energy in the β-FPU chain: Chaotic breathers

T Cretegny, T Dauxois, S Ruffo, A Torcini - Physica D: Nonlinear …, 1998 - Elsevier
The evolution towards equipartition in the β-FPU chain is studied considering as initial condition
the highest frequency mode. Above an analytically derived energy threshold, this zone-…

Dynamical phases of the Hindmarsh-Rose neuronal model: Studies of the transition from bursting to spiking chaos

…, A Morelli, R Genesio, A Torcini - Chaos: An Interdisciplinary …, 2007 - pubs.aip.org
The dynamical phases of the Hindmarsh-Rose neuronal model are analyzed in detail by
varying the external current I⁠. For increasing current values, the model exhibits a peculiar …

Hysteretic transitions in the Kuramoto model with inertia

S Olmi, A Navas, S Boccaletti, A Torcini - Physical Review E, 2014 - APS
We report finite-size numerical investigations and mean-field analysis of a Kuramoto model
with inertia for fully coupled and diluted systems. In particular, we examine, for a gaussian …

Collective chaos in pulse-coupled neural networks

S Olmi, A Politi, A Torcini - Europhysics Letters, 2011 - iopscience.iop.org
We study the dynamics of two symmetrically coupled populations of identical leaky integrate-and-fire
neurons characterized by an excitatory coupling. Upon varying the coupling …

Intermittent chaotic chimeras for coupled rotators

S Olmi, EA Martens, S Thutupalli, A Torcini - Physical Review E, 2015 - APS
Two symmetrically coupled populations of N oscillators with inertia m display chaotic solutions
with broken symmetry similar to experimental observations with mechanical pendulums. …

[HTML][HTML] Theta-nested gamma oscillations in next generation neural mass models

M Segneri, H Bi, S Olmi, A Torcini - Frontiers in computational …, 2020 - frontiersin.org
Theta-nested gamma oscillations have been reported in many areas of the brain and are
believed to represent a fundamental mechanism to transfer information across spatial and …

Transition from asynchronous to oscillatory dynamics in balanced spiking networks with instantaneous synapses

M Di Volo, A Torcini - Physical review letters, 2018 - APS
We report a transition from asynchronous to oscillatory behavior in balanced inhibitory
networks for class I and II neurons with instantaneous synapses. Collective oscillations emerge …

Reduction methodology for fluctuation driven population dynamics

DS Goldobin, M Di Volo, A Torcini - Physical Review Letters, 2021 - APS
Lorentzian distributions have been largely employed in statistical mechanics to obtain exact
results for heterogeneous systems. Analytic continuation of these results is impossible even …

Desynchronization in diluted neural networks

R Zillmer, R Livi, A Politi, A Torcini - Physical Review E, 2006 - APS
The dynamical behavior of a weakly diluted fully inhibitory network of pulse-coupled spiking
neurons is investigated. Upon increasing the coupling strength, a transition from regular to …

[BOOK][B] Nonlinear dynamics in computational neuroscience

F Corinto, A Torcini - 2019 - Springer
… The program of the workshop as well as the contents of this book was organized and edited
by Alessandro Torcini and Fernando Corinto, both members of our society. I wish to thank for …