Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE credits
There are open issues within the uctuation theory owing to the approximations invoked
in regimes outside fully ionized collisionless plasmas. This includes laboratory and space
environments where e ects of Coulomb collisions or collisions with neutrals or dust particles
cannot be ignored. Molecular Dynamics simulations have the potential to address
such parameter regimes which are intractable by the analytical approach.
The numerical method employed in this work for the calculation of the space-time correlation
function of density uctuations is based on molecular dynamics in (r, v) space
using an importance sampling Monte Carlo. The outcome of these MD simulation is
then transformed into Fourier space to enable comparison with the analytical results of
the uctuation theory. The comparison is carried out in the regime of thermal collisionless
fully ionized plasmas, with no drifts and neutral component, in order to verify the
numerical approach, choose appropriate simulation and FFT settings and to estimate
error bars on the features of the electron spectral density of uctuations.
2015. , 60 p.