Introduced by the late Per Bak and his colleagues, self-organized criticality (SOC) has been
one of the most stimulating concepts to come out of statistical mechanics and condensed …

The progress that has been made in understanding the processes responsible for edge
localized modes is reviewed. Attention is restricted to the role of ideal magneto …

The high plasma temperatures expected at reactor conditions in magnetic confinement
fusion toroidal devices suggest that near-marginal operation could be a reality in future …

Transport in fusion plasmas in the low confinement mode is characterized by several
remarkable properties: the anomalous scaling of transport with system size, stiff (or …

Understanding transport of thermal and suprathermal particles is a fundamental issue in
laboratory, solar-terrestrial, and astrophysical plasmas. For laboratory fusion experiments …

We analyze random walk through fractal environments, embedded in three-dimensional,
permeable space. Particles travel freely and are scattered off into random directions when …

Complex systems science seeks to identify simple universal models that capture the key
physics of extended macroscopic systems, whose behaviour is governed by multiple …

Energy transport and confinement in tokamakfusion plasmas is usually determined by the
coupled nonlinear interactions of small-scale drift turbulence and larger scale coherent …

We present a statistical analysis of avalanches of granular materials that partially fill a slowly
rotated horizontal drum. For large sized noncohesive grains the classical coherent …

In this work we investigate the presence of lump-like solutions in models described by a
single real scalar field in 1+ 1 dimensions. We take advantage of a procedure recently used …