%0 Journal Article
%A Relaño Pérez, Armando
%A Gómez Gómez, José María
%A Retamosa Granado, Joaquín
%A Faleiro, E.
%A Salasnich, L.
%A Vranicar, M.
%A Robnik, M.
%T 1/ƒ^(α) noise in spectral fluctuations of quantum systems
%D 2005
%@ 0031-9007
%U https://hdl.handle.net/20.500.14352/51285
%X The power law 1/ƒ^(α) in the power spectrum characterizes the fluctuating observables of many complex natural systems. Considering the energy levels of a quantum system as a discrete time series where the energy plays the role of time, the level fluctuations can be characterized by the power spectrum. Using a family of quantum billiards, we analyze the order-to-chaos transition in terms of this power spectrum. A power law 1/ƒ^(α) is found at all the transition stages, and it is shown that the exponent alpha is related to the chaotic component of the classical phase space of the quantum system.
%~