Evidence of Low Dimensional Chaos in Glow Curves of Thermoluminescence

Details Evidence of Low Dimensional Chaos in Glow Curves of Thermoluminescence Evidence of Low Dimensional Chaos in Glow Curves of Thermoluminescence

2008-12-04

arxiv.org/abs/0812.0932v1

Physics

General Physics

Scientific paper

Electron trapping following exposition to ionising radiations and consequent electron release during variation of temperature in solids represent processes happening at the quantum microphysical level. The interesting feature of the thermally stimulated process, that in fact deserves further investigation, is that the dynamic of electrons release during, variation of the temperature, here examined through the so called thermoluminescent Glow Curve, evidences chaotic and fractal regimes. Phase space reconstruction, Correlation Dimension, largest Lyapunov exponent, Recurrence Quantification Analysis(RQA) and fractal dimension analysis, developed by calculation of Hurst exponent, are performed on three samples. The results unequivocally fix that Glow Curves respond to a chaotic regime. RQA supports such results revealing the inner structure of Glow Curve signals in relation to their properties of recurrence, determinism and intermittency signed from laminarity as well as chaos-chaos and chaos order transitions.

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