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Non-universal features in the quasi-particle excitation spectra of Andreev billiards and wires

Ihra, Wolfgang ; Richter, Klaus
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Date of publication of this fulltext: 05 Aug 2009 13:29


Abstract

We study non-universal features of the quasi- particle excitation spectra of normal-conducting mesoscopic structures, whose classical dynamics are chaotic, and which are coupled to a superconducting lead. In the first part we demonstrate the importance of non-universal contributions in Andreev billiards when the ergodic time of the billiard is of the same order as the mean escape time. ...

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