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Resonant dephasing of the electronic Mach-Zehnder interferometer.

Cheianov, Vadim V. and Sukhorukov, E. (2007) Resonant dephasing of the electronic Mach-Zehnder interferometer. Physical Review Letters, 99 (15). p. 156801.

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Abstract

We address the recently observed unexpected behavior of Aharonov-Bohm oscillations in the electronic Mach-Zehnder interferometer that was realized experimentally in a quantum Hall system [I. Neder et al., Phys. Rev. Lett. 96, 016804 (2006)]. We argue that the measured lobe structure in the visibility of oscillations and the phase rigidity result from a strong long-range interaction between two adjacent counterpropagating edge states, which leads to a resonant scattering of plasmons. The visibility and phase shift, which we express in terms of the transmission coefficient for plasmons, can be used for the tomography of edge states.

Item Type: Article
Journal or Publication Title: Physical Review Letters
Additional Information: Recent experiments with the electronic Mach Zehnder interferometer (Heiblum at Weizmann Institute) demonstrated a completely unexpected behavior of quantum dephasing in this system. We resolve the experimental puzzle and show how the dephasing mechanism discovered in the experiment may be used for spectroscopic pursposes. RAE_import_type : Journal article RAE_uoa_type : Physics
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 2345
Deposited By: ep_importer
Deposited On: 02 Apr 2008 10:52
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 16:10
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/2345

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