Oberseminar Nonlinear Dynamics
|Apr 15, 2008
|Apr 22, 2007
(Institute for Complex Systems, Florence)
|Chaotic synchronization in spatially extended systems
Synchronization transitions in chaotic spatially extended
systems with short range interactions will be briefly
reviewed . In particular, we will focus on the
existing analogies between out-of-equilibrium phase
transitions and chaotic synchronizations.
Moreover, recent developments, concerning synchronization in
systems with power-law coupling, will be presented .
In this framework, the transitions are found to be
always continuous, while the critical indexes vary with continuity
with the power law exponent characterizing the interaction.
For discontinuous local dynamics, numerical evidences indicate that
the observed transitions belong to the "anomalous directed percolation"
family of universality classes found for Levy-flight spreading of epidemic
processes . Instead for continuous local dynamics it is not
possible to associate the transitions to previously studied crtitical
- L. Baroni et al., Physical Review E 63 (2001) 036226;
F. Bagnoli e F.Cecconi, Phys. Lett. A 260, 9 (2001);
V. Ahlers and A.S. Pikovsky, Physical Review Letters 88 (2002);
F. Bagnoli e R. Rechtman, Phys. Rev. E 73, 026202 (2006).
- C.J. Tessone et al., Phys. Rev. Lett. 97 (2006) 224101.
- D. Mollison, J. R. Stat. Soc. B 39, 283 (1977);
P. Grassberger, in Fractals in Physics,
edited by L. Pietronero and E. Tosatti (Elsevier, 1986);
H. Hinrichsen, Adv. Phys., 49, 815 (2000).
- M. Cencini et al. Chaos (2008) in press.
|Apr 29, 2008
|May 06, 2008
||Prof. Dr. Arnd Scheel
(University of Minnesota)
|How robust are Liesegang patterns
|May 20, 2008
|May 27, 2008
Engineering of Chemical Complexity
|Jun 03, 2008
||Dr. Pavel Gurevich
|On periodic solutions of thermocontrol problems with hysteresis
|Jun 10, 2008
|Jun 17, 2008
(National Academy of Sciences of Ukraine)
|Bifurcations to heteroclinic cycles in phase coupled oscillators
|Jun 24, 2008
||PD Dr. Jürgen Knobloch
|Snaking in reversible systems
|Jul 01, 2008
|Jul 08, 2008
||Dr. Oleh Omelchenko
|Chimera States: The Natural Link Between Coherence and Incoherence
|Aug 26, 2008
||Dr. Dmitrii Turaev
(Imperial College, London)
|The Lorenz attractor does exist
Weierstraß Institute, Ehrhard-Schmid-Hörsaal, Mohrenstr.39, 10117 Berlin, 3:15 p.m.
Time and Place
Talks usually take place on Tuesday at 3:15 p.m.
at the Free University Berlin
Room 140, Arnimallee 7, 14195 Berlin.
Tea and coffee will be served at 2:45 p.m., Arnimallee 3, Room 006.
Guests are always welcome !