Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2008-04-16
Physics
Condensed Matter
Disordered Systems and Neural Networks
Scientific paper
10.1088/0957-4484/19/43/435402
We report the investigation of the dynamic conductance fluctuation of disordered mesoscopic conductors including 1D, 2D and quantum dot systems. Our numerical results show that in the quasi-ballistic regime the average emittance is negative indicating the expected inductive-like behavior. However, in the diffusive and localized regime, the average emittance is still negative. This disagrees qualitatively with the result obtained from the random matrix theory. Our analysis suggests that this counter-intuitive result is due to the appearance of non-diffusive elements in the system, the necklace states (or the precursor of necklace states in the diffusive regime) whose existence has been confirmed experimentally in an optical system.
Ren Wei
Wang Jian
Xu Fuming
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