4 papers
Crystallization and dynamics of defects in a magnetic fluctuating medium
Jean-Yves P. Fortin
We consider the dynamics of classical particles or defects moving in a fluctuating two-dimensional magnetic medium made of Ising spins. These defects occupy empty sites, and each o…
Quantum scattering by a disordered target -- The mean cross section
D Boosé, J Y Fortin, J M Luck
We study the variation of the mean cross section with the density of the samples in the quantum scattering of a particle by a disordered target. The target consists of a set of poi…
Magnetic fluctuations in the classical XY model: the origin of an exponential tail in a complex system
S. T. Bramwell, J. -Y. Fortin, P. C. W. Holdsworth +4
We study the probability density function for the fluctuations of the magnetic order parameter in the low temperature phase of the XY model of finite size. In two-dimensions this s…
Universal Fluctuations in Correlated Systems
S. T. Bramwell, K. Christensen, J. -Y. Fortin +7
The probability density function (PDF) of a global measure in a large class of highly correlated systems has been suggested to be of the same functional form. Here, we identify the…