Eiglsperger, Johannes and Kramer, Tobias and Madroñero, Javier
Fluctuations in the spectra of open few-body systems.
New Journal of Physics 13 (6), 063033.
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Other URL: http://iopscience.iop.org/1367-2630/13/6/063033/
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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