RT Journal Article
T1 1/f noise and very high spectral rigidity
A1 Relaño Pérez, Armando
A1 Retamosa Granado, Joaquín
A1 Faleiro, E.
A1 Molina, R. A.
A1 Zuker, A. P.
AB Abstract: It was recently pointed out that the spectral fluctuations of quantum systems are formally analogous to discrete time series, and therefore their structure can be characterized by the power spectrum of the signal. Moreover, it is found that the power spectrum of chaotic spectra displays a 1/f behavior, while that of regular systems follows a 1/f(2) law. This analogy provides a link between the concepts of spectral rigidity and antipersistence. Trying to get a deeper understanding of this relationship, we have studied the correlation structure of spectra with high spectral rigidity. Using an appropriate family of random Hamiltonians, we increase the spectral rigidity up to hindering completely the spectral fluctuations. Analyzing the long range correlation structure a neat power law 1/f has been found for all the spectra, along the whole process. Therefore, 1/f noise is the characteristic fingerprint of a transition that, preserving the scale-free correlation structure, hinders completely the fluctuations of the spectrum.
PB American Physical Society
SN 1539-3755
YR 2006
FD 2006-02
LK https://hdl.handle.net/20.500.14352/51281
UL https://hdl.handle.net/20.500.14352/51281
LA eng
NO ©2006 The American Physical Society. This work is supported in part by Spanish Government Grants No. BFM2003-04147 and No. FTN2003-08337-C04-04.
NO Spanish Government
DS Docta Complutense
RD 28 abr 2025