Quantum spectrum as a time series : Fluctuation measures

Details Quantum spectrum as a time series : Fluctuation measures Quantum spectrum as a time series : Fluctuation measures

2005-08-30

arxiv.org/abs/nlin/0508035v2

Phys. Rev. E 73, 015201(R) (2006)

Nonlinear Sciences

Chaotic Dynamics

4+ pages. 2 figures

Scientific paper

10.1103/PhysRevE.73.015201

The fluctuations in the quantum spectrum could be treated like a time series. In this framework, we explore the statistical self-similarity in the quantum spectrum using the detrended fluctuation analysis (DFA) and random matrix theory (RMT). We calculate the Hausdorff measure for the spectra of atoms and Gaussian ensembles and study their self-affine properties. We show that DFA is equivalent to $\Delta_3$ statistics of RMT, unifying two different approaches.We exploit this connection to obtain theoretical estimates for the Hausdorff measure.

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