Electron Counting Capacitance Standard with an improved five-junction R-pump
| Autor: | G.-D. Willenberg, Mark W. Keller, Hansjörg Scherer, Benedetta Camarota, Franz J. Ahlers, Sergey V. Lotkhov |
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| Rok vydání: | 2011 |
| Předmět: |
Physics
Condensed Matter - Mesoscale and Nanoscale Physics business.industry General Engineering FOS: Physical sciences Charge (physics) Electron Elementary charge 7. Clean energy 01 natural sciences Capacitance law.invention 010309 optics Condensed Matter - Other Condensed Matter Capacitor law 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Optoelectronics 010306 general physics business Electron counting Quantum Quantum tunnelling Other Condensed Matter (cond-mat.other) |
| DOI: | 10.48550/arxiv.1107.1616 |
| Popis: | 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. Comment: 16 pages, 9 figures, 1 table |
| Databáze: | OpenAIRE |
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