><Publications

Chaos, Solitons & Fractals, 69, 285–293 (2014) DOI:10.1016/j.chaos.2014.10.005

Order to chaos transition studies in a DC glow discharge plasma by using recurrence quantification analysis

V. Mitra, A. Sarma, M. S. Janaki, A. N. Sekar Iyengar, B. Sarma, N. Marwan, J. Kurths, P. K. Shaw, D. Saha, S. Ghosh

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Recurrence quantification analysis (RQA) is used to study dynamical systems and to identify the underlying physics when a system exhibits a transition due to changes in some control parameter. The tendency of reoccurrence of different states after certain interval reflects and reveals the hidden patterns of a complex time series data. The present work involves the study of the floating potential fluctuations of a glow discharge plasma obtained by using a Langmuir probe. Determinism, entropy and Lmax are important measures of RQA that show an increasing and decreasing trend with variation in the values of discharge voltages and indicate an order-chaos transition in the dynamics of the fluctuations. Statistical analysis techniques represented by skewness and kurtosis are also supportive of a similar phenomenon occurring in the system.

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