Defects and turbulence in systems with two delays

  • IFISC Seminar

  • Serhiy Yanchuk
  • Institute of Mathematics, Humboldt University, Berlin, Germany
  • 19 de març de 2014 a les 14:30
  • IFISC Seminar Room
  • Announcement file

We introduce a class of systems with multiple, hierarchically long time delays, and using a suitable space-time representation we uncover features otherwise hidden in their temporal dynamics. Erratic behaviour in the case of two delays is shown to ”encode” two-dimensional spiral defects and defects turbulence.
A multiple scale analysis sets the equivalence to a complex Ginzburg-Landau equation.
We also demonstrate this phenomenon for a semiconductor laser with two delayed optical feedbacks.

This is a joint result with G. Giacomelli.


Detalls de contacte:

Manuel Matías

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