Regensburg 2004 – wissenschaftliches Programm
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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.