| Zugriffsnummer | 31214 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Self-referenced single-electron quantized current source |
| Autor(in); Institution |
Fricke, Lukas; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
Wulf, Michael; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
Kästner, Bernd; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
Hohls, Frank; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
Mirovsky, Philipp; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
Mackrodt, Brigitte; 2.4, Quantenelektronik, PTB-Braunschweig
Dolata, Ralf; 2.4, Quantenelektronik, PTB-Braunschweig
Weimann, Thomas; 2.4, Quantenelektronik, PTB-Braunschweig
Pierz, Klaus; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
Siegner, Uwe; 2, Elektrizität, PTB-Braunschweig
Schumacher, Hans Werner; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig
|
| Quelle/Jahr | Physical Review Letters: 112 (2014), 226803-1 - 226803-5 |
| ISSN | 0031-9007 (PRINT) ; 1079-7114 (ONLINE) |
| DOI | |
| URL | |
| Verlag | Ridge, NY: American Physical Society |
| Klassifikationscode | PACS: 73.23.Hk ; PACS: 06.20.-f ; PACS: 85.35.Gv |
| Zusammenfassung | The future redefinition of the international system of units in terms of natural constants requires a robust, high-precision quantum standard for the electrical base unit ampere. However, the reliability of any single-electron current source generating a nominally quantized output current I = ef by delivering single electrons with charge e at a frequency f is eventually limited by the stochastic nature of the underlying quantum mechanical tunneling process. We experimentally explore a path to overcome this fundamental limitation by serially connecting clocked single-electron emitters with multiple in situ single-electron detectors. Correlation analysis of the detector signatures during current generation reveals erroneous pumping events and enables us to determine the deviation of the output current from the nominal quantized value ef. This demonstrates the concept of a self-referenced single-electron source for electrical quantum metrology. |
Zitierung
Fricke, L., Wulf, M., Kästner, B., Hohls, F., Mirovsky, P., Mackrodt, B., Dolata, R., Weimann, T., Pierz, K., Siegner, U., & Schumacher, H. W. (2014). Self-referenced single-electron quantized current source. Physical Review Letters, 112, 226803-1–226803-5. https://doi.org/10.1103/physrevlett.112.226803