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Fluctuations in the spectra of open few-body systems

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Eiglsperger, Johannes ; Kramer, Tobias ; Madroñero, Javier
License: Creative Commons Attribution 3.0
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Date of publication of this fulltext: 25 Jul 2011 07:55


We investigate simple open few-body systems, the spectra of which exhibit fluctuating patterns, and review the conditions for the existence of an Ericson regime in deterministic, open quantum systems. A widely used criterion, the Lorentzian shape of the autocorrelation function of the spectrum, is shown to be insufficient for the occurrence of Ericson fluctuations: integrable systems or open ...


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