Abstrakti
We review the latest progress in understanding the fundamental noise properties of a coherent single electron emitter known as the mesoscopic capacitor. The system consists of a submicron cavity connected to a two-dimensional electron gas via a quantum point contact. When subject to periodic gate voltage modulations, the mesoscopic capacitor absorbs and re-emits single electrons at giga-hertz frequencies as it has been demonstrated experimentally. Recent high-frequency noise measurements have moreover allowed for a precise characterization of the device in different operating regimes. Here we discuss a simple model of the basic charge transfer processes in the mesoscopic capacitor and show how the model is capable of fully reproducing the measured high-frequency noise spectrum. We extend our analysis to the counting statistics of emitted electrons during a large number of periods which we use to discuss the accuracy of the mesoscopic capacitor as a single electron source. Finally, we consider possible applications of the mesoscopic capacitor in future experiments and identify novel pathways for further theoretical research.
Alkuperäiskieli | Englanti |
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Otsikko | 2011 21st INTERNATIONAL CONFERENCE ON NOISE AND FLUCTUATIONS (ICNF) |
Toimittajat | MJ Deen, CH Chen |
Kustantaja | IEEE |
Sivut | 162-167 |
Sivumäärä | 6 |
ISBN (painettu) | 978-1-4577-0192-4 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 2011 |
OKM-julkaisutyyppi | A4 Artikkeli konferenssijulkaisussa |
Tapahtuma | International Conference on Noise and Fluctuations - Toronto, Kanada Kesto: 12 kesäk. 2011 → 16 kesäk. 2011 Konferenssinumero: 21 |
Conference
Conference | International Conference on Noise and Fluctuations |
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Lyhennettä | ICNF |
Maa/Alue | Kanada |
Kaupunki | Toronto |
Ajanjakso | 12/06/2011 → 16/06/2011 |