| This site is no longer updated.

| Visit current web-page at: http://www.nd.edu/~toro |  

Zoltán Toroczkai



Associate Professor
Physics Department
University of Notre Dame
225 Nieuwland Science Hall,
Notre Dame, IN, 46556, USA


 Email: toro@nd.edu
 Phone: (574) 631-2618
 Fax: (574) 631-5952


Complex Networks 


Agent-Based Systems


Statistical Physics


 Nonlinear Dynamics and Chaos



   Complexity permeates virtually every aspect of our lives. The most unsettling property of these systems is the difficulty of predicting their behavior, even in cases when one knows in detail their structural composition and the interaction rules on the microscopic scale. It is well known that nonlinearity and non-locality of the interactions will usually generate complex behavior. However, it has recently been discovered that complexity has at least one other face: that is complexity generated by the topology of the interactions, studied under the name of Complex Networks Science.  Another interesting, and largely uncharted "type" of complexity is generated when coupling already complex components that have optimization tendency, studied under the emerging field of Agent-based Systems.
     My current research focuses both on complex networks and agent-based systems. Starting from a statistical physics base, my main goal is to develop a methodology for the understanding and modeling these type of systems.

Book: "Complex Networks" ,  Lecture Notes in Physics, Springer-Verlag, 2004, Eds. E. Ben-Naim, H. Frauenfelder and Z. Toroczkai.
[Table of Contents]

Curriculum Vitae

Travel Schedule


Networks research at LANL: the SPIN  group
Networks research at Notre-Dame University: the Barabási group
Networks research in Europe: COSIN
György Korniss
Charles Reichhardt
Matthew Hastings
Eli Ben-Naim
Kevin E. Bassler
Center for Nonlinear Studies
Los Alamos National Laboratory
Popularization article:  

Complex Networks:
The Challenge of Interaction Topology


Research Highlights:


Epidemic Networks

Nature, 429, 180 (2004)


Gradient Networks

Nature, 428, 716 (2004)


When Virtual Times get Rough

Science, 299, 677 (2003)


Catching particles with a stick

Phys. Rev. Lett. 89, 164501 (2002) 
(cover-page article)


Chaotic flow: The Physics of Species Coexistence

Proc. Natl. Acad. Sci. USA,  97, 13661 (2000)




Site under construction!