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Decoherence in ballistic mesoscopic interferometers

Georg Seelig·Sebastian Pilgram·Markus Buttiker
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Abstract

We provide a theoretical explanation for two recent experiments on decoherence of Aharonov-Bohm oscillations in two- and multi-terminal ballistic rings. We consider decoherence due to charge fluctuations and emphasize the role of charge exchange between the system and the reservoir or nearby gates. A time-dependent scattering matrix approach is shown to be a convenient tool for the discussion of decoherence in ballistic conductors.

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Georg Seelig, Sebastian Pilgram, Markus Buttiker. 2003-11-09. Decoherence in ballistic mesoscopic interferometers. https://arxiv.org/abs/cond-mat/0311193

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