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oai:docta.ucm.es:20.500.14352/446912025-03-11T16:10:14Zcom_20.500.14352_14col_20.500.14352_15

Barba, J. C Finkel Morgenstern, Federico González López, Artemio Rodríguez González, Miguel Ángel 2023-06-20T03:56:08Z 2023-06-20T03:56:08Z 2009 1539-3755 10.1103/PhysRevE.80.047201 https://hdl.handle.net/20.500.14352/44691 http://dx.doi.org/10.1103/PhysRevE.80.047201 http://journals.aps.org/ In this paper, we show that there is a family of well-known integrable systems whose spectral fluctuations decay as 1/ f^ 4, and thus do not follow the 1/ f ^2 law recently conjectured for integrable systems. We present a simple theoretical justification of this fact, and propose an alternative characterization of quantum chaos versus integrability formulated directly in terms of the power spectrum of the spacings of the unfolded spectrum. eng open access 1/f(α) Noise and integrable systems journal article