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Decoherence and full counting statistics in a Mach-Zehnder interferometer

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Published in Physical Review. B, Condensed Matter. 2005, vol. 72, no. 075301, p. 10
Abstract We investigate the Full Counting Statistics of an electrical Mach-Zehnder interferometer penetrated by an Aharonov-Bohm flux, and in the presence of a classical fluctuating potential. Of interest is the suppression of the Aharonov-Bohm oscillations in the distribution function of the transmitted charge. For a Gaussian fluctuating field we calculate the first three cumulants. The fluctuating potential causes a modulation of the conductance leading in the third cumulant to a term cubic in voltage and to a contribution correlating modulation of current and noise. In the high voltage regime we present an approximation of the generating function.
Keywords High voltageMach-Zehnder interferometersFluctuationsStatistical analysisCoherenceAharonov-Bohm effect
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FORSTER, Heidi, PILGRAM, Sebastian, BUTTIKER, Markus. Decoherence and full counting statistics in a Mach-Zehnder interferometer. In: Physical Review. B, Condensed Matter, 2005, vol. 72, n° 075301, p. 10. https://archive-ouverte.unige.ch/unige:4177

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Deposited on : 2009-11-30

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