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Probe-configuration dependent dephasing in a mesoscopic interferometer

Published inPhysical review. B, Condensed matter and materials physics, vol. 68, p. 161310.1-161310.4
Publication date2003
Abstract

Dephasing in a ballistic four-terminal Aharonov-Bohm geometry due to charge and voltage fluctuations is investigated. Treating two terminals as voltage probes, we find a strong dependence of the dephasing rate on the probe configuration in agreement with a recent experiment by Kobayashi et al. (J. Phys. Soc. Jpn. 71, 2094 (2002)). Voltage fluctuations in the measurement circuit are shown to be the source of the configuration dependence.

Keywords
  • Mesoscopic systems and quantum hall effect
  • Condensed matter
Citation (ISO format)
SEELIG, Georg et al. Probe-configuration dependent dephasing in a mesoscopic interferometer. In: Physical review. B, Condensed matter and materials physics, 2003, vol. 68, p. 161310.1–161310.4. doi: 10.1103/PhysRevB.68.161310
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ISSN of the journal1098-0121
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