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- J Hizanidis, A Balanov, A Amann, E Schöll
- Physical review letters
- 2006

We show that front motion can be induced by noise in a spatially extended excitable system with a global constraint. Our model system is a semiconductor superlattice exhibiting complex dynamics of electron accumulation and depletion fronts. The presence of noise induces a global change in the dynamics of the system forcing stationary fronts to move through… (More)

- J. Hizanidis, A. G. Balanov, A. Amann, Eckehard Schöll
- I. J. Bifurcation and Chaos
- 2006

We consider noise-induced charge density dynamics in a semiconductor superlattice. The parameters are fixed in the regime below the Hopf bifurcation that gives birth to spatio-temporal oscillations, where in the absence of noise the system rests in a fixed point. It is shown that in this case noise can induce in the superlattice quite coherent oscillations… (More)

- J. Hizanidis, R. Aust, Eckehard Schöll
- I. J. Bifurcation and Chaos
- 2008

We study the effect of a time-delayed feedback within a generic model for a saddle-node bifurcation on a limit cycle. Without delay the only attractor below this global bifurcation is a stable node. Delay renders the phase space infinite-dimensional and creates multistability of periodic orbits and the fixed point. Homoclinic bifurcations, period-doubling… (More)

- Johanne Hizanidis, Eckehard Schöll
- Physical review. E, Statistical, nonlinear, and…
- 2008

We study the effect of time-delayed feedback control and Gaussian white noise on the spatiotemporal charge dynamics in a semiconductor superlattice. The system is prepared in a regime where the deterministic dynamics is close to a global bifurcation, namely, a saddle-node bifurcation on a limit cycle. In the absence of control, noise can induce electron… (More)

- Iryna Omelchenko, Astero Provata, Johanne Hizanidis, Eckehard Schöll, Philipp Hövel
- Physical review. E, Statistical, nonlinear, and…
- 2015

Chimera states are complex spatio-temporal patterns that consist of coexisting domains of spatially coherent and incoherent dynamics. This counterintuitive phenomenon was first observed in systems of identical oscillators with symmetric coupling topology. Can one overcome these limitations? To address this question, we discuss the robustness of chimera… (More)

- Johanne Hizanidis, Nikos E. Kouvaris, Zamora-López Gorka, Albert Díaz-Guilera, Chris G. Antonopoulos
- Scientific reports
- 2016

Chimera states, namely the coexistence of coherent and incoherent behavior, were previously analyzed in complex networks. However, they have not been extensively studied in modular networks. Here, we consider a neural network inspired by the connectome of the C. elegans soil worm, organized into six interconnected communities, where neurons obey chaotic… (More)

- J Hizanidis, N Lazarides, G P Tsironis
- Physical review. E
- 2016

We report on the emergence of robust multiclustered chimera states in a dissipative-driven system of symmetrically and locally coupled identical superconducting quantum interference device (SQUID) oscillators. The "snakelike" resonance curve of the single SQUID is the key to the formation of the chimera states and is responsible for the extreme… (More)

- Thomas Isele, Johanne Hizanidis, Astero Provata, Philipp Hövel
- Physical review. E
- 2016

We explore the influence of a block of excitable units on the existence and behavior of chimera states in a nonlocally coupled ring-network of FitzHugh-Nagumo elements. The FitzHugh-Nagumo system, a paradigmatic model in many fields from neuroscience to chemical pattern formation and nonlinear electronics, exhibits oscillatory or excitable behavior… (More)

We review stabilization of deterministic chaotic as well as noise-induced spatio-temporal patterns in spatially extended nonlinear systems by time-delayed feedback control. Different control schemes, e.g., a diagonal control matrix, or global control, or combinations of both, are compared. Specifically, we use two models of nonlinear charge transport in… (More)

- Johanne Hizanidis, Nikos E. Kouvaris, Gorka Zamora-López, Albert Díaz-Guilera, Chris G. Antonopoulos
- Scientific reports
- 2016

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