S. Sobhanian | Searcharxiv

arXiv2009

Fractal Analysis of Discharge Current Fluctuations

We use the multifractal detrended fluctuation analysis (MF-DFA) to study the electrical discharge current fluctuations in plasma and show that it has multifractal properties and behaves as a weak anti-correlated process. Comparison of the MF-DFA results for the original series with those for the shuffled and surrogate series shows that correlation of the fluctuations is responsible for multifractal nature of the electrical discharge current.

cond-mat.stat-mech↗

arXiv2002

Level Crossing Analysis of Growing surfaces

We investigate the average frequency of positive slope $ν_α^{+} $, crossing the height $α= h- \bar h$ in the surface growing processes. The exact level crossing analysis of the random deposition model and the Kardar-Parisi-Zhang equation in the strong coupling limit before creation of singularities are given.

cond-mat↗