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DY: Dynamik und Statistische Physik

DY 46: Poster

DY 46.1: Poster

Donnerstag, 11. März 2004, 16:00–18:00, Poster D

Period orbit expansion for simple spin systems — •Sarah Hallerberg¹, Wolfram Just², and Günter Radons¹ — ¹Institute of Physics, Chemnitz University of Technology, Chemnitz, Germany — ²Department of Mathematics, Queen Mary/University of London, London, UK

We investigate the properties of zeta functions and the corresponding expansion in terms of periodic orbits for spin chain models. In particular we focus on mean field models which display phase transitions. The properties of the zeta function and the periodic orbit expansion in different phases and near the phase transition will be investigated by analytical methods.