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Efficient semiclassical approach for time delays

URN to cite this document:
urn:nbn:de:bvb:355-epub-309966
DOI to cite this document:
10.5283/epub.30996
Kuipers, Jack ; Savin, Dmitry V. ; Sieber, Martin
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Date of publication of this fulltext: 26 Nov 2014 13:03




Abstract

The Wigner time delay, defined by the energy derivative of the total scattering phase shift, is an important spectral measure of an open quantum system characterizing the duration of the scattering event. It is proportional to the trace of the Wigner-Smith matrix Q that also encodes other time-delay characteristics. For chaotic cavities, these quantities exhibit universal fluctuations that are ...

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