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arXiv · 1107.1616

Electron Counting Capacitance Standard with an improved five-junction R-pump

Benedetta Camarota·Hansjoerg Scherer·Mark W Keller·Sergey V Lotkhov·Gerd-Dietmar Willenberg·Franz Josef Ahlers
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Abstract

The Electron Counting Capacitance Standard currently pursued at PTB aims to close the Quantum Metrological Triangle with a final precision of a few parts in 10^7. This paper reports the considerable progress recently achieved with a new generation of single-electron tunnelling devices. A five-junction R-pump was operated with a relative charge transfer error of five electrons in 10^7, and was used to successfully perform single-electron charging of a cryogenic capacitor. The preliminary result for the single-electron charge quantum has an uncertainty of less than two parts in 10^6 and is consistent with the value of the elementary charge.

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Benedetta Camarota, Hansjoerg Scherer, Mark W Keller, Sergey V Lotkhov, Gerd-Dietmar Willenberg, Franz Josef Ahlers. 2011-07-08. Electron Counting Capacitance Standard with an improved five-junction R-pump. https://doi.org/10.1088/0026-1394/49/1/002

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