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25 May 2004 Shot noise: from Schottky's vacuum tube to present-day quantum devices
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Proceedings Volume 5469, Fluctuations and Noise in Materials; (2004)
Event: Second International Symposium on Fluctuations and Noise, 2004, Maspalomas, Gran Canaria Island, Spain
Shot-noise in the electrical current through a 'device' is caused by random processes that determine the electron transport from source to drain. Two sources can be distinguished: on the hand, electrons may randomly emanate from the contacts (source and drain), because the relevant states in the reservoirs fluctuate. On the other hand, the transmission through the device is non-deterministic (non-classical). As we demonstrate in this article the former dominates noise in the vacuum tube, whereas the latter applies to coherent mesoscopic devices, which have been studied in great detail during the last decade.
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Christian Schonenberger and Stefan Oberholzer "Shot noise: from Schottky's vacuum tube to present-day quantum devices", Proc. SPIE 5469, Fluctuations and Noise in Materials, (25 May 2004);

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