title: Achlioptas processes are not always self-averaging.
abstract: We consider a class of percolation models, called Achlioptas processes, discussed in Science 323, 1453 (2009) and Science 333, 322 (2011). For these, the evolution of the order parameter (the rescaled size of the largest connected component) has been the main focus of research in recent years. We show that, in striking contrast to "classical" models, self-averaging is not a universal feature of these new percolation models: there are natural Achlioptas processes whose order parameter has random fluctuations that do not disappear in the thermodynamic limit.
authors.affiliation: Mathematical Institute, University of Oxford, 24-29 St Giles', Oxford OX1 3LB, United Kingdom.
authors.forename: Oliver
authors.initials: O
authors.lastname: Riordan
authors.forename: Lutz
authors.initials: L
authors.lastname: Warnke
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D015233:Models, Statistical; D013816:Thermodynamics