| Zugriffsnummer | 34804 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Validation of a quantized-current source with 0.2 ppm uncertainty |
| Autor(in); Institution |
Stein, Friederike; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
Drung, Dietmar; 7.2, Kryophysik und Spektrometrie, PTB-Berlin
Fricke, Lukas; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
Scherer, Hansjörg; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Hohls, Frank; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
Leicht, Christoph; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
Götz, Martin; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Krause, Christian; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Behr, Ralf; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Pesel, Eckart; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Pierz, Klaus; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
Siegner, Uwe; 2, Elektrizität, PTB-Braunschweig
Ahlers, Franz Josef; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Schumacher, Hans Werner; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
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| Quelle/Jahr | Applied Physics Letters: 107 (2015), 10, 103501-1 - 103501-5 |
| ISSN | 1077-3118 (PRINT) ; 0003-6951 (ONLINE) |
| DOI | |
| URL | |
| Verlag | College Park, Md.: American Institute of Physics |
| Freie Schlagworte | Electron Transfer ; Error analysis ; Quantum dots ; Quantum measurement theory ; Time measurement |
| Zusammenfassung | We report on high-accuracy measurements of quantized current, sourced by a tunable-barrier single-electron pump at frequencies f up to 1 GHz. The measurements were performed with an ultrastable picoammeter instrument, traceable to the Josephson and quantum Hall effects. Current quantization according to I = ef with e being the elementary charge was confirmed at f = 545 MHz with a total relative uncertainty of 0.2 ppm, improving the state of the art by about a factor of 5. The accuracy of a possible future quantum current standard based on single-electron transport was experimentally validated to be better than the best (indirect) realization of the ampere within the present SI. |
Zitierung
Stein, F., Drung, D., Fricke, L., Scherer, H., Hohls, F., Leicht, C., Götz, M., Krause, C., Behr, R., Pesel, E., Pierz, K., Siegner, U., Ahlers, F. J., & Schumacher, H. W. (2015). Validation of a quantized-current source with 0.2 ppm uncertainty. Applied Physics Letters, 107(10), 103501-1–103501-5. https://doi.org/10.1063/1.4930142