You are here
Chimeras exist...
The American Institute of Physics (AIP) has featured our recent article in a special science highlight, known as a Scilight. Due to its novelty and close connection with ever-present phenomena, reported results are of wide interest to the general public.
We find delay systems everywhere in our delay life. The morning-fight between you and your shower’s temperature is one example: the initially freezing-cold water makes you turn the temperature dial to the maximum temperature. When that water reaches your head your response to burning hot water is to turn the shower to cold, upon which you freeze again – a vicious cycle which in dynamical systems can continue forever. Everyone who regularly gets stuck in the morning commuter-traffic will equally appreciate the importance of a well-planned network.
That both, systems with delay and networks are actually different sides of the same coin is known since some years. In our work we show in experiments that a system with two delays behaves like a two dimensional (2D) network. We find fascinating states such as 2D-chimeras and solitons. Chimeras are states where a part of the network is chaotic, but a section remains fully calm, see Fig. 1. Imagine a stormy sea, in whose centre you find a completely calm area – almost like a harbour, but without any walls needed. Solitons are waves, which exist without losing their shape, and in theory can live forever.
We give the first experimental confirmation of this 2D analogy between delay and network. The states we find are relevant for potential applications in neuromorphic computing.Ultimately, the brain too is a network.
D. Brunner, B. Penkovsky, R. Levchenko, E. Schöll, L. Larger, Y. Maistrenko, “Two-dimensional spatio-temporal complexity in dual-delayed nonlinear feedback systems: chimeras and dissipative solitons,” Chaos 28, 103106 (2018). https://aip.scitation.org/doi/10.1063/1.5043391
-
Robotic assembly of the smallest house in the world
the handling and assembly capabilities of nanocomponents of the "μRobotex" platform make the buzz on the net and in the international press through the origami manufacturing of a micro-house at the end of an optical fiber whose dimensions are less than the diameter of a hair.
Read more
-
International Day of Light 2018
Following the success of the International Year of Light, which highlighted the importance of light-based science and technology and generated more than 13,000 activities in 147 countries, UNESCO proclaimed May 16 as the International Day of Light.
Read more
Enrico Rubiola honored at IFCS 2018
Enrico Rubiola will receive the W. G. Cady Award at the IFCS 2018 on May 24th.
Read more
L'institut FEMTO-ST partenaire d'un programme européen Marie-Curie H2020 Innovative Training Networ
The department of Optics of the FEMTO-ST research institute in Besançon
in France currently has a vacancy for 2 3-years Ph.D positions working in
the development of mid-infrared and ultraviolet supercontinuum fiber sources within the
Read more
FACS 2016 - The 13th International Conference on Formal Aspects of Component Software
The DISC department, organizer of the 13th International Conference on FACS.
Read more
Special issue of Comptes Rendus Physique on phononic crystals
The May 2016 issue of Comptes Rendus Physique (an international peer-reviewed journal of the French Academy of Sciences), is devoted to phononic crystals. This special issue was coordinated by Vincent Laude.
Read more
Paper prize at the international conference VPPC 2014
At the International IEEE "Vehicle Power and Propulsion Conference" conference held in Coimbra, Portugal from 27 to 30 October 2014, “Hybrid & Fuel Cell Systems” Research Team of Femto-ST Institute won the Paper Prize for the paper titled “Energy management of an hybrid electrical vehicule in degraded operation”
Read more
A book about flexible robotics co-written by Nicolas Chaillet
The objective of the book "Flexible Robotics: Applications to Multiscale Manipulations" is to provide those interested in the field of flexible robotics with an overview of several scientific and technological advances in the practical field of robotic manipulation.
Read more
Pages