Dr Gunnar Pruessner

Dr Pruessner works in the field of non-equilibrium physics and its applications in biological and man-made systems, considering mostly asymptotic behaviour, i.e. phenomena on large length and time scales. Applications range from surface and crystalline growth to scaling in ecotones. He applies field theoretical techniques extensively, as well as large scale numerics. The main focus of his research is complexity and self-organised criticality (SOC) with the main objective to bring to bear the most succesful technique of statistical mechanics, namely renormalised field theory. He was able to relate the largest universality class in SOC to the well studied quenched Edwards-Wilkinson equation, establishing rigorously for the first time an intimate link between traditional non-equilibrium critical phenomena and SOC. Very extensive computer simulations of the most robust and solid model in SOC, the Manna Model, provide further evidence for universality and the existence of an epsilon expansion.
In 2012 he has completed a 500 page monograph on SOC to be published by Cambridge University Press.
In 2009 he was chosen an outstanding referee for Physical Review and Physical Review Letters by the APS.