Cooperative behaviour of complex systems

Translated title of the contribution: Kooperatív viselkedés komplex rendszerekben

Research output: Types of ThesisDoctoral Thesis

Abstract (may include machine translation)

In my PhD thesis I studied cooperative phenomena arise in complex systems using the methods of statistical and computational physics. The aim of my work was also to study the critical behaviour of interacting many-body systems during their phase transitions and describe their universal features analytically and by means of numerical calculations. In order to do so I completed studies in four different subjects. My first investigated subject was a study of non-equilibrium phase transitions in weighted scale-free networks. The second problem I examined was the ferromagnetic random bond Potts model with large values of q on evolving scale-free networks which problem is equivalent to an optimal cooperation problem. The third examined problem was related to the large-q sate random bond Potts model also and I examined the critical density of clusters which touched a certain border of a perpendicular strip like geometry and expected to hold analytical forms deduced from conformal invariance. The last investigated problem was a study of the non-equilibrium dynamical behaviour of the antiferromagnetic Ising model on two-dimensional triangular lattice at zero temperature in the absence of external field and at the Kosterlitz-Thouless phase transition point.
Translated title of the contributionKooperatív viselkedés komplex rendszerekben
Original languageEnglish
Supervisors/Advisors
  • Iglói, F., Supervisor, External person
  • D'Auriac, J. Ch Anglès, Supervisor, External person
Publisher
StatePublished - Jul 2009

Fingerprint

Dive into the research topics of 'Kooperatív viselkedés komplex rendszerekben'. Together they form a unique fingerprint.

Cite this