Journal
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
Volume 40, Issue 5, Pages 1048-1050Publisher
ELSEVIER
DOI: 10.1016/j.physe.2007.09.195
Keywords
edge states; quantum interferences; coherence
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We present an original method to measure the visibility of interferences in an electronic Mach-Zehnder interferometer in the presence of low frequency phase fluctuations. We studied the visibility of the interferences as a function of the energy and showed a gaussian variation of the decoherence and/or phase averaging at finite energy. This gaussian variation leads to a visibility modulation with a single side lobe. (C) 2007 Elsevier B.V. All rights reserved.
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