Stochastic behaviour in the edge region of the SINP tokamak

TL;DR

This paper investigates the stochastic and chaotic nature of floating potential fluctuations in the edge region of the SINP tokamak, using advanced wavelet and nonlinear analysis techniques to understand plasma behavior.

Contribution

It introduces a comprehensive analysis combining wavelet and nonlinear methods to identify multifractal stochasticity and chaos in tokamak edge plasma fluctuations.

Findings

Detection of stochastic multifractal processes in plasma fluctuations

Evidence of low-dimensional chaos in edge plasma behavior

Validation of analysis through multiple nonlinear techniques

Abstract

Stochasticity is one of the most extensively researched topics in laboratory and space plasmas since it has been successful in explaining the various anomalous processes like transport, particle heating, particle loss etc. Since there is a growing need for better understanding of this nonlinear process, it has led to the development of new and more advanced data analysis techniques. In this paper we present an analysis of the floating potential fluctuations which show the existence of a stochastic multifractal process along with low dimensional chaos. This has been shown primarily by wavelet analysis, and cross checked using other nonlinear techniques.