Conductance-Phase Determination in Double Slit Transmission across a Quantum Dot by Hilbert Transform Method

Details Conductance-Phase Determination in Double Slit Transmission across a Quantum Dot by Hilbert Transform Method Conductance-Phase Determination in Double Slit Transmission across a Quantum Dot by Hilbert Transform Method

2004-06-29

arxiv.org/abs/cond-mat/0406709v1

Phys. Rev. B, 61, 2716-2720 (2000)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.61.2716

Recent novel mesoscopic two-arm experiments involving quantum dots, electron interferometry and Aharononov-Bohm effects have enabled measuring the electron transmission probabilities and the phases. Unexpected features in the phases as function of the gap voltage U have simulated intensive theoretical works. It is shown in this paper that the phases (f) and conductances (|C|), appearing in both the experimental and the theoretical works, are interrelated through integral expressions, causing f and log(|C|) to be Hilbert transforms. The empirically found interrelations imply remarkable analytical properties of the U-dependence of wave-functions in mesoscopic systems.

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